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Cyproterone acetate

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Name

Cyproterone acetate

EINECS 207-048-3
CAS No. 427-51-0 Density 1.27 g/cm3
PSA 60.44000 LogP 4.60760
Solubility N/A Melting Point 200-201 °C
Formula C24H29ClO4 Boiling Point 525.9 °C at 760 mmHg
Molecular Weight 416.945 Flash Point 177.6 °C
Transport Information N/A Appearance Crystalline solid
Safety 22-36-26 Risk Codes 20/21/22-40-36/37/38
Molecular Structure Molecular Structure of 427-51-0 (Cyproterone acetate) Hazard Symbols HarmfulXn, IrritantXi
Synonyms

SH 714;Cyproteron-r acetate;6-Chloro-1beta,2beta-dihydro-17-hydroxy-3H-cyclopropa(1,2)-pregna-1,4,6-triene-3,20-dione acetate;Cyproteroneacetate;Cyproterone acetate (JAN/USAN);Cyproviron;1,2-alpha-Methylene-6-chloro-(sup 4,6)-pregnadiene-17-alpha-ol-3,20-dione 17-alpha-acetate;6-Chloro-delta(sup 6)-1,2-alpha-methylene-17-alpha-hydroxyprogesterone acetate;3H-Cyclopropa[1,2]pregna-1,4,6-triene-3, 20-dione, 17- (acetyloxy)-6-chloro-1,2-dihydro-, (1.beta., 2.beta.)-;6-Chloro-delta-6-1,2alpha-methylene-17alpha-hydroxyprogesterone acetate;17-alpha-Acetoxy-6-chloro-1-alpha,2-alpha-methylenepregna-4,6-diene-3,20-dione;1,2-alpha-Methylene-6-chloro-pregna-4,6-diene-3,20-dione 17-alpha-acetate;Cyproterone acetate [USAN:JAN];Cyproterone 17-O-acetate;6-Chloro-1-beta,2-beta-dihydro-17-hydroxy-3H-cyclopropa(1,2)pregna-1,4,6-triene-3,20-dione 17-acetate;SH 80714;3H-Cyclopropa(1,2)pregna-1,4,6-triene-3,20-dione, 6-chloro-1-beta,2-beta-dihydro-17-hydroxy-, acetate;6-Chloro-17-hydroxy-1.alpha.,2.alpha.-methylenepregna-4, 6-diene-3,20-dione acetate;Pregna-4,6-diene-3,20-dione, 6-chloro-17-hydroxy-1.alpha.,2.alpha.-methylene-, acetate;Cyproterone 17.alpha.-acetate;1, 2.alpha.-Methylene-6-chloro-(sup 4,6)-pregnadiene-17.alpha.-ol-3, 20-dione 17alpha-acetate;Progesterone, 6-chloro-6-dehydro-17-hydroxy-1.alpha.,2.alpha.-methylene-, acetate;Cyproterone 17alpha-acetate;3'H-Cyclopropa[1,2]pregna-1,4,6-triene-3,20- dione,17-(acetyloxy)-6-chloro-1,2-dihydro-,(1a,2a)-;Cyproteron acetate;Cyprosterone acetate;Androcur;6-chloro-1-β,2-β-dihydro-17-hydroxy-3'H-cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione 17-acetate;

Article Data 14

Cyproterone acetate Synthetic route

13698-49-2

6-chloro-17a-acetoxy-pregnane-1,4,6-,triene-3,20-dione

1774-47-6

trimethylsulfoxonium iodide

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Stage #1: 6-chloro-17a-acetoxy-pregnane-1,4,6-,triene-3,20-dione; trimethylsulfoxonium iodide With sodium hydride In dimethyl sulfoxide at 5 - 20℃; for 29.5h;
Stage #2: With hydrogenchloride In water; dimethyl sulfoxide at 0℃;
51.51%
17183-98-1

6-chloro-1α-chloromethyl-Δ4,6-pregnadien-17α-ol-3,20-dione-17-acetate

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Stage #1: 6-chloro-1α-chloromethyl-Δ4,6-pregnadien-17α-ol-3,20-dione-17-acetate With 2,4,6-trimethyl-pyridine for 0.333333h; Heating / reflux;
Stage #2: With hydrogenchloride In diethyl ether; water pH=7; Product distribution / selectivity;
With sodium acetate In methanol; N,N-dimethyl-formamide at 60℃; for 8h; Temperature;

C24H30O5

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: acetic anhydride; acetic acid; hydrogenchloride / water / 11 h / 0 - 27 °C
2: sodium acetate / N,N-dimethyl-formamide; methanol / 8 h / 60 °C
View Scheme

C24H32O4

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: sulfuric acid / N,N-dimethyl-formamide / 2 h / pH 2
2: chloroform / 58 °C
3: dihydrogen peroxide; phthalic anhydride / ethyl acetate / 8 h / 20 °C
4: acetic anhydride; acetic acid; hydrogenchloride / water / 11 h / 0 - 27 °C
5: sodium acetate / N,N-dimethyl-formamide; methanol / 8 h / 60 °C
View Scheme
66212-25-7

1,4,6-triene-3,20-dione-17α-hydroxyprogesterone

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: orthoformic acid triethyl ester / dichloromethane / 5 h / 30 °C
2: N,N-dimethyl-formamide / 3 h / 42 °C
3: sulfuric acid / N,N-dimethyl-formamide / 2 h / pH 2
4: chloroform / 58 °C
5: dihydrogen peroxide; phthalic anhydride / ethyl acetate / 8 h / 20 °C
6: acetic anhydride; acetic acid; hydrogenchloride / water / 11 h / 0 - 27 °C
7: sodium acetate / N,N-dimethyl-formamide; methanol / 8 h / 60 °C
View Scheme

C23H30O4

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: N,N-dimethyl-formamide / 3 h / 42 °C
2: sulfuric acid / N,N-dimethyl-formamide / 2 h / pH 2
3: chloroform / 58 °C
4: dihydrogen peroxide; phthalic anhydride / ethyl acetate / 8 h / 20 °C
5: acetic anhydride; acetic acid; hydrogenchloride / water / 11 h / 0 - 27 °C
6: sodium acetate / N,N-dimethyl-formamide; methanol / 8 h / 60 °C
View Scheme
2098-65-9

17α-hydroxy-1α,2α-methylene-4,6-pregnadiene-3,20-dione

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: chloroform / 58 °C
2: dihydrogen peroxide; phthalic anhydride / ethyl acetate / 8 h / 20 °C
3: acetic anhydride; acetic acid; hydrogenchloride / water / 11 h / 0 - 27 °C
4: sodium acetate / N,N-dimethyl-formamide; methanol / 8 h / 60 °C
View Scheme
2701-50-0

1,2α-methylene-Δ4,6-pregnadiene-17α-ol-3,20-dione-17-acetate

427-51-0

cyproterone acetate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dihydrogen peroxide; phthalic anhydride / ethyl acetate / 8 h / 20 °C
2: acetic anhydride; acetic acid; hydrogenchloride / water / 11 h / 0 - 27 °C
3: sodium acetate / N,N-dimethyl-formamide; methanol / 8 h / 60 °C
View Scheme

C24H30Cl2O4

427-51-0

cyproterone acetate

Conditions
ConditionsYield
With sodium carbonate In methanol; N,N-dimethyl-formamide at 50 - 55℃; for 5h;
427-51-0

cyproterone acetate

77730-89-3

6-chloro-1α,2α-methylene-4,6,16-pregnatriene-3,20-dione

Conditions
ConditionsYield
89%

Cyproterone acetate Consensus Reports

EPA Genetic Toxicology Program.

Cyproterone acetate Specification

Cyproterone acetate, with the CAS NO.427-51-0, is also called 1,2-alpha-methylene-6-chloro-delta-(sup4,6)-pregnadiene-17-alpha-ol-3,20-dio; 1,2-alpha-methylene-6-chloro-delta(sup6)-17-alpha-hydroxyprogesteroneacetat; 1,2-alpha-methylene-6-chloro-pregna-4,6-diene-3,20-dione17-alpha-acetate. Cyproterone acetate is very soluble in dichloromethane, soluble in methyl alcohol, freely soluble in acetone, sparingly soluble in dehydrated alcohol, and insoluble in water. Cyproterone acetate is a medicine which is used in prostate cancer.

Physical properties about Cyproterone acetate are: (1)ACD/LogP: 4.216; (2)ACD/LogD (pH 5.5): 4.22; (3)ACD/LogD (pH 7.4): 4.22; (4)ACD/BCF (pH 5.5): 942.43; (5)ACD/BCF (pH 7.4): 942.43; (6)ACD/KOC (pH 5.5): 4683.45; (7)ACD/KOC (pH 7.4): 4683.45; (8)#H bond acceptors: 4; (9)#Freely Rotating Bonds: 3; (10)Index of Refraction: 1.582 ; (11)Molar Refractivity: 109.164 cm3; (12)Molar Volume: 327.087 cm3; (13)Polarizability: 43.276 10-24cm3; (14)Surface Tension: 48.9609985351563 dyne/cm; (15)Density: 1.275 g/cm3; (16)Flash Point: 177.633 °C; (17)Enthalpy of Vaporization: 80.007 kJ/mol; (18)Boiling Point: 525.853 °C at 760 mmHg

Uses of Cyproterone acetate: Cyproterone acetate is used in the treatment of prostate cancer. It blocks the effects of hormones that may worsen certain types of prostate cancer. Tablet forms of this medicine must not be taken by women.

When you are using this chemical, please be cautious about it as the following:
1. Do not breathe dust;
2. Wear suitable protective clothing;
3. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;

You can still convert the following datas into molecular structure: (1)InChI=1S/C24H29ClO4/c1-12(26)24(29-13(2)27)8-6-16-14-10-20(25)19-11-21(28)15-9-18(15)23(19,4)17(14)5-7-22(16,24)3/h10-11,14-18H,5-9H2,1-4H3/t14-,15+,16-,17-,18-,22-,23-,24-/m0/s1;
(2)InChIKey=UWFYSQMTEOIJJG-FDTZYFLXSA-N;
(3)SmilesC1=2[C@@]([C@@H]3[C@@H](C(=O)C2)C3)([C@@H]2[C@H]([C@H]3[C@]([C@@](OC(C)=O)(C(C)=O)CC3)(C)CC2)C=C1Cl)C

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
man LDLo oral 171mg/kg/17W- (171mg/kg) LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), ZONAL"

LIVER: LIVER FUNCTION TESTS IMPAIRED
Israel Journal of Medical Sciences. Vol. 30, Pg. 238, 1994.
man TDLo oral 514mg/kg/7W-I (514mg/kg) LIVER: LIVER FUNCTION TESTS IMPAIRED

LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), ZONAL"

LIVER: "HEPATITIS, FIBROUS (CIRRHOSIS, POST-NECROTIC SCARRING)"
Australian and New Zealand Journal of Medicine. Vol. 26, Pg. 724, 1996.
mouse LD50 intraperitoneal 3300mg/kg (3300mg/kg)   Drugs in Japan Vol. 6, Pg. APP-4, 1982.
mouse LD50 oral > 5gm/kg (5000mg/kg)   Drugs in Japan Vol. 6, Pg. APP-4, 1982.
mouse LD50 subcutaneous > 5gm/kg (5000mg/kg)   Drugs in Japan Vol. 6, Pg. APP-4, 1982.
rat LD50 intraperitoneal 565mg/kg (565mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 13, Pg. 349, 1982.
rat LD50 oral > 5gm/kg (5000mg/kg)   Drugs in Japan Vol. 6, Pg. APP-4, 1982.
rat LD50 subcutaneous > 5gm/kg (5000mg/kg)   Drugs in Japan Vol. 6, Pg. APP-4, 1982.

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