667870-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667870-37-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,8,7 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 667870-37:
(8*6)+(7*6)+(6*7)+(5*8)+(4*7)+(3*0)+(2*3)+(1*7)=213
213 % 10 = 3
So 667870-37-3 is a valid CAS Registry Number.
667870-37-3Relevant articles and documents
A concise and stereoselective synthesis of (+)- and (-)-deoxoprosophylline
Chavan, Subhash P.,Praveen, Cherukupally
, p. 421 - 423 (2007/10/03)
An efficient synthesis of (+)- and (-)-deoxoprosophylline was accomplished from the readily available cis-2-butene-1,4-diol in which the Sharpless asymmetric dihydroxylation was used as the key step.
