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53875-01-7

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53875-01-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53875-01-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,8,7 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53875-01:
(7*5)+(6*3)+(5*8)+(4*7)+(3*5)+(2*0)+(1*1)=137
137 % 10 = 7
So 53875-01-7 is a valid CAS Registry Number.

53875-01-7Downstream Products

53875-01-7Relevant articles and documents

Participation of the 19-Substituent in the Conversion of 19-Hydroxyandrost-4-ene-3,17-dione into the Corresponding 4,5-Diosphenol

Hrycko, Sophia,Morand, Peter

, p. 2899 - 2904 (2007/10/02)

The synthesis of 4,19-dihydroxyandrost-4-ene-3,17-dione from 19-hydroxy-4β,5-epoxy-5β-androstane-3,17-dione and from 4β,5,19-trihydroxy-5β-androstane-3,17-dione is described.Under various reaction conditions other products are obtained as a result of participation of the 19-hydroxy group to form cyclic ethers.The formation of two of these products, 4α,5-isopropylidene-3α-hydroxy-3β,19-epoxy-5α-androstan-17-one and 4α-hydroxy-4β,19-epoxy-5α-androstane-3,17-dione, can be avoided by treatment of the aforementioned trihydroxy dione with acetic acid in the presence of HCl.

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