6839-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6839-77-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,3 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6839-77:
(6*6)+(5*8)+(4*3)+(3*9)+(2*7)+(1*7)=136
136 % 10 = 6
So 6839-77-6 is a valid CAS Registry Number.
6839-77-6Relevant articles and documents
An efficient TiCl4-catalysed method for the synthesis of para-substituted aromatic aldehydes
Zhou, Chenfeng,Su, Weike
, p. 555 - 557 (2015/11/27)
An efficient and highly selective synthesis of para-substituted aromatic aldehydes has been achieved by TiCl4-catalysed Friedel-Crafts alkylation of monosubstituted benzenes with methacrolein diacetyl acetal.
