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25788-52-7

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25788-52-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25788-52-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,7,8 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25788-52:
(7*2)+(6*5)+(5*7)+(4*8)+(3*8)+(2*5)+(1*2)=147
147 % 10 = 7
So 25788-52-7 is a valid CAS Registry Number.

25788-52-7Downstream Products

25788-52-7Relevant articles and documents

Microbiological Transformations. Part 4. Microbiological Transformations of 5α-Androstan-17-ones and of 17a-Aza-D-homo-5α-androstan-17-ones with the Fungus Cunninghamella elegans

Crabb, Trevor A.,Saul, John A.,Williams, Roger O.

, p. 1041 - 1045 (1981)

The microbiological transformation of 5α-androstan-17-one, and the 3β-acetoxy- and 3α-hydroxy-derivatives, by Cunninghamella elegans is dominated by 1β,7-dihydroxylation or 7-monohydroxylation. 3α-Acetoxy-5α-androstan-17-one undergoes predominant 6β,11β-dihydroxylation. 17a-Aza-D-homo-5α-androstan-17-one and the 3α-acetoxy-derivative undergo predominant monohydroxylation at 6β or 7α, in contrast to the 3β-acetoxy-derivative which, although undergoing similar monohydroxylation, gives good yield of 9α-monohydroxylated products.

Microbiological hydroxylation. Part XX. Hydroxylation of dioxygenated 5alpha-androstanes with the fungi Absidia regnieri and Syncephelastrum racemosum.

Bell,Jones,Meakins,Miners,Wilkins

, p. 2040 - 2043 (2007/10/10)

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