76633-67-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76633-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,6,3 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 76633-67:
(7*7)+(6*6)+(5*6)+(4*3)+(3*3)+(2*6)+(1*7)=155
155 % 10 = 5
So 76633-67-5 is a valid CAS Registry Number.
76633-67-5Relevant articles and documents
Synthesis of Some Novel Analogues of Phthalein Dyes: Phthal-as-eins
Chamoli, R. P.,Gupta, P. C.
, p. 777 - 779 (2007/10/02)
A number of novel phthalein dyes (V-X) have been synthesised by the condensation of phenols with 2-(p-bromobenzoyl)benzoic acid (Ia) and 2-(p-bromobenzoyl)tetrachlorobenzoic acid (Ib).These dyes, being unsymmetrically substituted phthalides where the cent