142777-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142777-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,7 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142777-79:
(8*1)+(7*4)+(6*2)+(5*7)+(4*7)+(3*7)+(2*7)+(1*9)=155
155 % 10 = 5
So 142777-79-5 is a valid CAS Registry Number.
142777-79-5Relevant academic research and scientific papers
1α-Hydroxy-19-nor-vitamin D C-22 aldehyde. A valuable intermediate in the synthesis of side chain modifed 1α,25-dihydroxy-19-nor-vitamin D3
Perlman, Kato L.,DeLuca, Hector F.
, p. 2937 - 2940 (2007/10/02)
A side chain homologated 1α,25-dihydroxy-19-nor-vitamin D3 analog was prepared in a double convergent synthesis with 1α-hydroxy-19-nor-vitamin D C-22 aldehyde as a key intermediate.
