77930-79-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77930-79-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,3 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77930-79:
(7*7)+(6*7)+(5*9)+(4*3)+(3*0)+(2*7)+(1*9)=171
171 % 10 = 1
So 77930-79-1 is a valid CAS Registry Number.
77930-79-1Relevant articles and documents
SYNTHESIS OF 1-OXA ANALOGUES OF NATURALLY OCCURRING CEPHALOSPORINS AND CEPHAMYCINS
Sendo, Yuji,Konoike, Toshiro,Murakami, Masayuki,Yoshioka, Mitsuru
, p. 599 - 603 (2007/10/02)
The title compounds 15a-c and 16a-c were synthesized from a 3-exomethylene-1-oxacepham compound 4.Its chlorohydroxylation provided a key intermediate 5e in synthesis of the 3'-oxygen-functionalized 1-oxacephems.
