50-28-2 structure, C18H24O2
17β-estradiol
CAS No.: 50-28-2 Formula: C18H24O2 Molecular Weight: 272.38200
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17β-estradiol

CAS No.:

50-28-2

Formula:

C18H24O2

Molecular Weight: 272.38200
Suppliers: All (248) China Suppliers (175) Price Available (46) Contractor (18)

Description

Estradiol is the major estrogen secreted by the premenopausal ovary.

Basic Info

Chemical Name

17β-estradiol

Synonyms

17-Beta-Estradiol; 17Beta-Estradiol; Estra-1,3,5(10)-triene-3,17-diol(17b)-; Estra-1,3,5(10)-triene-3,17-diol (17β)-;

CAS No.

50-28-2

Molecular Formula

C18H24O2

Molecular Weight

272.38200

PSA

40.46000

LogP

3.60920

Numbering system

UNII 4TI98Z838E

Properties

Appearance & Physical State

white to off-white crystalline powder

Density

1.17g/cm3

Boiling Point

445.9ºC at 760mmHg

Melting Point

173ºC

Flash Point

209.6ºC

Refractive Index

1.599

Stability

Stable. Incompatible with strong oxidizing agents.

Storage Condition

2-8ºC

Safety Info

Hazard Class

6.1

Safety Statements

S53-S45

Packing Group

III

Risk Statements

R45

Hazard Codes

T

Signal Word

Danger

Symbol

GHS08

Hazard Declaration

H351; H360Fd; H362

Caution Statement

P201; P263; P281; P308 + P313

SDS 1.0

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SDS 1.0

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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 17β-estradiol

1.2 Other means of identification

Product number -
Other names 17-Beta-Estradiol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Veterinary Drug: PRODUCTION_AID
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Carcinogenicity, Category 2

Reproductive toxicity, Category 1A

Reproductive toxicity, Additional category for effects on or via lactation

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H351 Suspected of causing cancer

H360 May damage fertility or the unborn child

H362 May cause harm to breast-fed children

Precautionary statement(s)
Prevention

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

P263 Avoid contact during pregnancy and while nursing.

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

Response

P308+P313 IF exposed or concerned: Get medical advice/ attention.

Storage

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
17β-estradiol 17β-estradiol 50-28-2 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

no data available

4.3 Indication of immediate medical attention and special treatment needed, if necessary

/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2 Specific hazards arising from the chemical

no data available

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Do not store unpouched. Apply immediately upon removal from the protective pouch.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state white to off-white crystalline powder
Colour White crystalline powder. Prisms from 80% alcohol
Odour Odorless
Melting point/ freezing point 28°C(lit.)
Boiling point or initial boiling point and boiling range 193°C/2.5mmHg(lit.)
Flammability no data available
Lower and upper explosion limit / flammability limit no data available
Flash point 47°C(lit.)
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility no data available
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure 6.38X10-9 mm Hg at 25°C (est)
Density and/or relative density 1.17g/cm3
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

no data available

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

A carcinogen.

10.6 Hazardous decomposition products

When heated to decomposition it emits acrid smoke and irritating fumes.

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

Evaluation: There is sufficient evidence in humans for the carcinogenicity of post-menopausal estrogen therapy. There is sufficient evidence in experimental animals for the carcinogenicity of estradiol and estrone. There is limited evidence in experimental animals for the carcinogenicity of conjugated equine estrogens, equilin and estriol. There is inadequate evidence in experimental animals for the carcinogenicity of d-equilenin. Overall evaluation: Post-menopausal estrogen therapy is carcinogenic to humans (Group 1). /Post-menopausal estrogen therapy/

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: EC50; Species: Danio rerio (Zebra danio, age 6-8 month adult, female); Conditions: freshwater, renewal, 25-28°C, pH 8.0-8.5, hardness 140-145 mg/L CaCO3; Concentration: 0.88 nM for 3 weeks; Effect: morphology, decreased ovarian weight in relationship to body weight /98% purity
  • Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water flea, age <24 hr neonate newly released); Conditions: freshwater, static, 20°C; Concentration: 1550 ug/L for 24 hr (95% confidence interval: 1050-2040 ug/L); Effect: development, decreased molting /100% purity, 17beta-estradiol
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

AEROBIC: 4-14C-Labeled estradiol, present at 1.5 mg/L, was 6% mineralized in 5 days after application to a microcosm employing 210 g of agricultural soil(Hamar soil: 2.23% organic mater, 14.0% clay, 19.0% silt, 67% sand) in 250 mL flasks(1). 17beta-Estradiol is 85-90% removed by conventional wastewater treatment, occurring mainly through sorption to sludge followed by biodegradation. Conjugated estrogens are hydrolyzed into free estrogens and glucuronide/sulfuric acid in the presence of Eschericia coli(2). Mineralization of estrogens may be enhanced by up to 147% or depressed up to 50%, depending on soil and organic waste(3).

12.3 Bioaccumulative potential

An estimated BCF of 200 was calculated in fish for estradiol(SRC), using a log Kow of 4.01(1) and a regression-derived equation(2). An estimated log BCF of 2.65 was calculated in fish for estradiol using a food-web model(3), corresponding to a BCF of 450(SRC). According to a classification scheme(4), this BCF suggests the potential for bioconcentration in aquatic organisms is high(SRC), provided the compound is not metabolized by the organism(SRC).

12.4 Mobility in soil

Using a Drummer soil from Indiana (pH 7.1, 2.91% organic carbon, 21% clay, 13% sand, 66% silt), a log Koc of 3.45 (Freundlich constant Kd 83.2) was measured(1), corresponding to a Koc of 3,000(SRC). According to a classification scheme(2), this estimated Koc value suggests that estradiol is expected to be immobile in soil. Kd values of 476 have been reported for estradiol in activated sludge wastewater treatment systems; it was estimated that as much as 66% of estradiol is absorbed to sludge and 0.24% sorbed to suspended particles during waste water treatment(3). Estradiol sorption was shown to increase with the amount of incorporated organic waste. In soils with an extensive history of organic waste treatments, soil organic carbon content is the controlling factor for estrogen sorption(4).

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.2 UN Proper Shipping Name

ADR/RID: unknown
IMDG: unknown
IATA: unknown

14.3 Transport hazard class(es)

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.4 Packing group, if applicable

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
17β-estradiol 17β-estradiol 50-28-2 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Not Listed.
China Catalog of Hazardous chemicals 2015 Not Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Not Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 11, 2017
Revision Date Aug 11, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

MSDS

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1H NMR : PredictExpand

NMR Spectrum 1H NMR : Predict

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50-28-2 NMR spectrum
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Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
Subcutaneous LD - Lethal dose Rodent - rat >300 mg/kg 1.Details of toxic effects not reported other than lethal dose value
Subcutaneous TDLo - Lowest published toxic dose Rodent - rat 4200 ug/kg/12W-I 1.Blood-changes in erythrocyte (RBC) count
2.Nutritional and Gross Metabolic-weight loss or decreased weight gain
3.Related to Chronic Data-changes in uterine weight
Intraperitoneal TDLo - Lowest published toxic dose Rodent - rat 1400 mg/kg/13W-I 1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria
2.Endocrine-tumors
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