868773-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 868773-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,8,7,7 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 868773-45:
(8*8)+(7*6)+(6*8)+(5*7)+(4*7)+(3*3)+(2*4)+(1*5)=239
239 % 10 = 9
So 868773-45-9 is a valid CAS Registry Number.
868773-45-9Relevant academic research and scientific papers
An efficient synthesis of carlosic acid and other 5-carboxymethyltetronates from malates
Schobert, Rainer,Jagusch, Carsten
, p. 2421 - 2425 (2007/10/03)
S-Carlosic acid was prepared in six steps and 32% yield from malic acid. Ring closure was effected by a domino addition-Wittig alkenation reaction with Ph3PCCO. A variant employing resin-bound malates furnished immobilized 5-carboxymethyltetron
