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125205-14-3

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125205-14-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125205-14-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,2,0 and 5 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 125205-14:
(8*1)+(7*2)+(6*5)+(5*2)+(4*0)+(3*5)+(2*1)+(1*4)=83
83 % 10 = 3
So 125205-14-3 is a valid CAS Registry Number.

125205-14-3Downstream Products

125205-14-3Relevant 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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