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64-82-4

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64-82-4 Usage

Chemical Properties

White Solid

Check Digit Verification of cas no

The CAS Registry Mumber 64-82-4 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 6 and 4 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64-82:
(4*6)+(3*4)+(2*8)+(1*2)=54
54 % 10 = 4
So 64-82-4 is a valid CAS Registry Number.

64-82-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name (5α,17β)-3-oxoandrost-1-en-17-yl acetate

1.2 Other means of identification

Product number -
Other names 17BETA-ACETOXY-3-OXO-5ALPHA-ANDROST-1-ENE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

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

More Details:64-82-4 SDS

64-82-4Relevant articles and documents

ANTI-CANCER NUCLEAR HORMONE RECEPTOR-TARGETING COMPOUNDS

-

Page/Page column 147-149, (2021/05/21)

The disclosure relates to anti-cancer compounds which are anti-cancer PARP inhibitors of formula Al, A2, A3 or A4 conjugated by a linker to a steroid, whereby the steroid targets the conjugate to the nucleus, as well as to methods for their preparation and use. (I)

An efficient synthesis of 5α-androst-1-ene-3,17-dione

Zhang, Huyue,Qiu, Zhuibai

, p. 1088 - 1090 (2007/10/03)

5α-Androst-1-ene-3,17-dione (5) as a prodrug of 1-testosterone (4) was prepared in four steps from 17β-Acetoxy-5α-androstan-3-one (stanolone acetate) (1) in high yield. Thus, stanolone acetate (1) was brominated in the presence of hydrogen chloride in acetic acid to give 17β-acetoxy-2-bromo-5α-androstan-3-one (2), which underwent dehydrobromination using lithium carbonate as base with lithium bromide as an additive to give 17β-acetoxy-5α-androst-1-en-3-one (3) in almost quantitative yield with 97% of purity. Compound (3) was hydrolyzed with sodium hydroxide to give 17β-hydroxy-5α-androst-1-en-3-one (4,1-testosterone), which was oxidized with chromium trioxide to afford 5α-androst-1-ene-3,17-dione (5). The overall yield of 5 was 78.2% with purity of 99%. In this method, the formation of 4-ene was diminished when 1-ene was introduced, and its mechanism was also discussed.

α-FLUORINATION OF KETONES BY XENON AND IODOBENZENE DIFLUORIDES: A STEREOCHEMICAL EVIDENCE DEMONSTRATING THEIR MECHANISTIC DIFFERENCES

Tsushima, Tadahiko,Kawada, Kenji,Tsuji, Teruji

, p. 1165 - 1168 (2007/10/02)

Xenon difluoride reacts smoothly with various steroid silyl enol ethers in the absence of any acid catalyst to afford stereoselectively α-oriented α-fluoroketones in good yields while iodotoluene difluoride reacts rather sluggishly with these silyl enol ethers to competitively produce β-oriented α-fluoro ketones, elimination and other nucleophilic substitution products.The observed stereochemical contrast clearly suggest an electrophilic and nucleophilic mechanism for these reactions, respectively.

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