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25829-83-8

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25829-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25829-83-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,8,2 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25829-83:
(7*2)+(6*5)+(5*8)+(4*2)+(3*9)+(2*8)+(1*3)=138
138 % 10 = 8
So 25829-83-8 is a valid CAS Registry Number.

25829-83-8Downstream Products

25829-83-8Relevant articles and documents

Huffman et al.

, p. 2963 (1964)

Conformational analysis-LII. The conformation of ring a in 5β-3-ketosteroids

Allinger,Neumann

, p. 1279 - 1282 (2007/10/14)

5β-Cholane-3,12-dione has been synthesized, and its dipole moment measured in benzene solution. The value of 4·49 D shows that ring A is in the chair form to within the limits of experimental measurement, which indicates that the earlier interpretation of the dipole moment of 5β-androstan-3,17-dione in terms of an equilibrium mixture of boat and chair forms for ring A is improbable, and that the later compound is more likely to have a deformation present in ring D.

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