2722-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2722-91-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,2 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2722-91:
(6*2)+(5*7)+(4*2)+(3*2)+(2*9)+(1*1)=80
80 % 10 = 0
So 2722-91-0 is a valid CAS Registry Number.
2722-91-0Relevant articles and documents
STEROIDS .LIII. TRANSFORMATION OF 3β-ACETOXY-5α-ANDROSTAN-17-ONE INTO 17α- AND 17β-AMINO DERIVATIVES OF 5α-ANDROSTAN-3β-OL
Nadaraia, N. Sh.,Sladkov, V. I.,Kuleshova, L. N.,Suvorov, N. N.
, p. 481 - 485 (2007/10/02)
The epimeric 17α- and 17β-amino-5α-androstan-3β-ols were synthesized from 3β-acetoxy-5α-androstan-17-one.The configurations at the C17 atom were demonstrated by the 1H NMR method.
