77627-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77627-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,2 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77627-49:
(7*7)+(6*7)+(5*6)+(4*2)+(3*7)+(2*4)+(1*9)=167
167 % 10 = 7
So 77627-49-7 is a valid CAS Registry Number.
77627-49-7Relevant articles and documents
SYNTHESES OF 1,2,3,6-TETRAHYDROBENZOCYCLOBUTENE-3,6-DIONES
Oda, Masaji,Kanao, Yoshinori
, p. 37 - 38 (2007/10/02)
Parent 1,2,3,6-tetrahydrobenzocyclobutene-3,6-dione and its simple derivatives were first synthesized by oxidation of bicyclooctane-2-diones in either one-step or stepwise manner.