70755-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70755-56-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,7,5 and 5 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 70755-56:
(7*7)+(6*0)+(5*7)+(4*5)+(3*5)+(2*5)+(1*6)=135
135 % 10 = 5
So 70755-56-5 is a valid CAS Registry Number.
70755-56-5Relevant articles and documents
SYNTHESIS OF THE PUTATIVE MARINE STEROLS - AND -23,24-DIMETHYL-5α-CHOLEST-23(29)-EN-3β-OL.
Gebreyesus, T.,Djerassi, Carl
, p. 4427 - 4430 (2007/10/02)
The synthesis and stereochemistry of and -23,24-dimethyl-5α-cholest-23(29)-en-3β-ol is reported; both isomers are different from a natural marine sterol to which the structure had been assigned.