535920-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 535920-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,5,9,2 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 535920-91:
(8*5)+(7*3)+(6*5)+(5*9)+(4*2)+(3*0)+(2*9)+(1*1)=163
163 % 10 = 3
So 535920-91-3 is a valid CAS Registry Number.
535920-91-3Relevant articles and documents
The unique nucleophilic reactivity of arylaminochlorocarbenes
Cheng, Ying,Yang, Hua,Meth-Cohn, Otto
, p. 90 - 91 (2007/10/03)
4-Methyl and 4-methoxyphenylaminochlorocarbene (readily formed by deprotonation of the Vilsmeier reagent derived from the corresponding N-methylformanilide with Huenig's base) reacted with diethyl acetylenedicarboxylate to give 1:2 quinoline adducts, whil