81426-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81426-72-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,2 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81426-72:
(7*8)+(6*1)+(5*4)+(4*2)+(3*6)+(2*7)+(1*2)=124
124 % 10 = 4
So 81426-72-4 is a valid CAS Registry Number.
81426-72-4Relevant academic research and scientific papers
Hirayama, Masao,Gamoh, Keiji,Ikekawa, Nobuo
, p. 491 - 494 (1982)
A facile synthesis of the steroidal α,β-disubstitued α,β-unsaturated-δ-lactones with 22R-configuration, withanolide side-chain lactones, was described.
