136344-06-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136344-06-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,3,4 and 4 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 136344-06:
(8*1)+(7*3)+(6*6)+(5*3)+(4*4)+(3*4)+(2*0)+(1*6)=114
114 % 10 = 4
So 136344-06-4 is a valid CAS Registry Number.
136344-06-4Relevant articles and documents
SYNTHESIS OF 2-SUBSTITUTED NAPHTOISOQUINOLINE-7,12-DIONE N-OXIDES
Ivanchikova, I. D.,Moroz, A. A.,Shvartsberg, M. S.
, p. 1286 - 1289 (1991)
1-Acetylenyl-2-formylantraquinone oximes cyclize upon heating in an ethanol-water solution of K2CO3 to give 2-substituted naphthoisoquinoline-7,12-dione N-oxides.