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167956-32-3

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167956-32-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 167956-32-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,9,5 and 6 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 167956-32:
(8*1)+(7*6)+(6*7)+(5*9)+(4*5)+(3*6)+(2*3)+(1*2)=183
183 % 10 = 3
So 167956-32-3 is a valid CAS Registry Number.

167956-32-3Downstream Products

167956-32-3Relevant articles and documents

Rearrangement of 3-Thioxo-Δ1,4-steroids, a New Approach of Steroid Thiols

Moeller, Stephanie,Weiss, Dieter,Beckert, Rainer

, p. 1397 - 1400 (2007/10/02)

3-Thioxoandrosta-1,4-dien-17-one (1) is subjected to a dienthion-thiophenol reaerangement in aprotic and protic solvents in the presence of an acid catalyst resulting in the formation of 1-(acetylthio)-4-methylestra-1,3,5(10)-trien-17-one (2), 1-mercapto-4-methylestra-1,3,5(10)-trien-17-one (3), and the dimer 1,1'-(dithio)bis (4) as the reaction products.The mercapto compound 3 tends to be autoxidized to the sulfide 4. - Keywords: 3-Thioxoandrosta-1,4-dien-17-one, rearrangement of / Thioestratriene

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