Lynestrenol

Modify Date: 2024-01-08 13:33:17

Lynestrenol Structure
Lynestrenol structure
Common Name Lynestrenol
CAS Number 52-76-6 Molecular Weight 284.436
Density 1.1±0.1 g/cm3 Boiling Point 399.6±42.0 °C at 760 mmHg
Molecular Formula C20H28O Melting Point 158ºC
MSDS N/A Flash Point 176.9±20.9 °C

 Use of Lynestrenol


Lynestrenol is a synthetic progestational hormone used often in mixtures with estrogens as an oral contraceptive.

 Names

Name Lynestrenol
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 399.6±42.0 °C at 760 mmHg
Melting Point 158ºC
Molecular Formula C20H28O
Molecular Weight 284.436
Flash Point 176.9±20.9 °C
Exact Mass 284.214020
PSA 20.23000
LogP 5.83
Vapour Pressure 0.0±2.1 mmHg at 25°C
Index of Refraction 1.568

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
RC8964300
CHEMICAL NAME :
19-Nor-17-alpha-pregn-4-en-20-yn-17-ol
CAS REGISTRY NUMBER :
52-76-6
LAST UPDATED :
199510
DATA ITEMS CITED :
20
MOLECULAR FORMULA :
C20-H28-O
MOLECULAR WEIGHT :
284.48
WISWESSER LINE NOTATION :
L E5 B666 MUTJ E1 FQ F1UU1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
320 ug/kg
SEX/DURATION :
female 23 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - other effects Reproductive - Fertility - other measures of fertility
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 15,197,1977
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
5600 ug/kg
SEX/DURATION :
female 80 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 8,315,1973
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
280 ug/kg
SEX/DURATION :
female 28 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - menstrual cycle changes or disorders
REFERENCE :
INJFA3 International Journal of Fertility. (Allen Press, 1041 New Hampshire, St., Lawrence, KS 66044) V.1- 1955- Volume(issue)/page/year: 18,246,1973
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Implant
DOSE :
5 mg/kg
SEX/DURATION :
female 39 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 18,411,1978
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
35 mg/kg
SEX/DURATION :
male 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
REFERENCE :
ACENA7 Acta Endocrinologica (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) V.1- 1948- Volume(issue)/page/year: 41,351,1962
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
7500 ug/kg
SEX/DURATION :
female 1-5 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated) Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)
REFERENCE :
CUSCAM Current Science. (Current Science Assoc., Sadashivanagar P.O., Bangalore 560 080, India) V.1- 1932- Volume(issue)/page/year: 50,64,1981
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
375 ug/kg
SEX/DURATION :
female 3 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
ACENA7 Acta Endocrinologica (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) V.1- 1948- Volume(issue)/page/year: 41,351,1962
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
100 mg/kg
SEX/DURATION :
female 17-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
ECJPAE Endocrinologia Japonica. (Japan Pub. Trading Co., Ltd., POB 5030, Tokyo International, Tokyo, Japan) V.1- 1954- Volume(issue)/page/year: 24,77,1977
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
80 mg/kg
SEX/DURATION :
female 4 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
ACENA7 Acta Endocrinologica (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) V.1- 1948- Volume(issue)/page/year: 41,351,1962
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
7500 ug/kg
SEX/DURATION :
female 1-5 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated) Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)
REFERENCE :
CUSCAM Current Science. (Current Science Assoc., Sadashivanagar P.O., Bangalore 560 080, India) V.1- 1932- Volume(issue)/page/year: 50,64,1981
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
20 mg/kg
SEX/DURATION :
female 2-5 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)
REFERENCE :
FESTAS Fertility and Sterility. (American Fertility Soc., 608 13th Ave. S, Birmingham, AL 35282) V.1- 1950- Volume(issue)/page/year: 22,741,1971
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
9 mg/kg
SEX/DURATION :
female 3 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
ACENA7 Acta Endocrinologica (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) V.1- 1948- Volume(issue)/page/year: 47,444,1964
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
28 mg/kg
SEX/DURATION :
female 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - ovaries, fallopian tubes
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 5,57,1972
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
280 mg/kg
SEX/DURATION :
female 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 5,57,1972
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
51900 ug/kg
SEX/DURATION :
female 3 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 26,529,1974
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1300 ug/kg
SEX/DURATION :
female 6-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Fertility - abortion Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 52,23,1983
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1300 ug/kg
SEX/DURATION :
female 6-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Specific Developmental Abnormalities - eye/ear Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 52,23,1983
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1300 ug/kg
SEX/DURATION :
female 6-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 52,23,1983
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
6500 ug/kg
SEX/DURATION :
female 6-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - behavioral
REFERENCE :
NIAND5 NIPH Annals. (National Institute of Public Health, Postuttak, Oslo, 1, Norway) V.1- 1978- Volume(issue)/page/year: 7(2),41,1984 *** REVIEWS *** IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 21,407,1979

 Safety Information

RIDADR NONH for all modes of transport
RTECS RC8964300

 Articles26

More Articles
Comparison of the efficacy of micronized progesterone and lynestrenol in treatment of simple endometrial hyperplasia without atypia.

Arch. Gynecol. Obstet. 290(1) , 83-6, (2014)

To evaluate the treatment of simple endometrial hyperplasia without atypia with different gestagens.Sixty premenopausal women with histologically documented endometrial hyperplasia without atypia were...

Progestogens or progestogen-releasing intrauterine systems for uterine fibroids.

Cochrane Database Syst. Rev. 2 , CD008994, (2013)

Uterine fibroids are the most common premenopausal benign uterine tumours. Fibroids can cause symptoms including heavy menstrual bleeding, pelvic pressure and pain. Progestogens can be administered by...

Lipid peroxidation in judoists using oral contraceptives.

Int. J. Sports Med. 33(10) , 781-8, (2012)

12 female judoists using oral contraceptives (OCU) containing 0.03 mg ethinylestradiol and 3 mg drospirenone for 20 ± 12 months (mean ± SD) were compared with a control group of 14 judoist noncontrace...

 Synonyms

exluten
exlution
org485-50
19-Nor-4-pregnen-20-yn-17β-ol
LYNDIOL
MFCD00051135
orgametil
EINECS 200-151-4
19-Norpregn-4-en-20-yn-17-ol
(17α)-17-ethynylestr-4-en-17-ol
ethinylestrenol
Exlutena
lynoestrenol
exluton
Estr-4-en-17-ol, 17-ethynyl-, (17α)-
Lynestrenol
lynenol
exlutona
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