61691-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61691-98-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,6,9 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 61691-98:
(7*6)+(6*1)+(5*6)+(4*9)+(3*1)+(2*9)+(1*8)=143
143 % 10 = 3
So 61691-98-3 is a valid CAS Registry Number.
61691-98-3Relevant articles and documents
A simple synthetic process for the elaboration of oligoprenols by stereospecific coupling of di-, tri-, or oligoisoprenoid units
Corey,Shieh
, p. 6435 - 6438 (1992)
An effective method of allyl-allyl coupling which is position and stereospecific leads in a simple way to oligoprenols from E-allylic halides.
