3336-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3336-74-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,3 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3336-74:
(6*3)+(5*3)+(4*3)+(3*6)+(2*7)+(1*4)=81
81 % 10 = 1
So 3336-74-1 is a valid CAS Registry Number.
3336-74-1Relevant academic research and scientific papers
Reactions of 2-Hydrazino-1-azaazulenes with Diphenylcyclopropenone
Abe, Noritaka,Kakehi, Akikazu
, p. 2487 - 2493 (2007/10/02)
The reaction of ethyl 2-hydrazino-1-azaazulene-3-carboxylate with diphenylcyclopropenone (DPP) gave ethyl (Z)-2--1-azaazulene-3-carboxylate, ethyl 8,9-diphenyl-1,2,9b-triazaindenoazulene-3-carboxylat