4402-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4402-37-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,0 and 2 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4402-37:
(6*4)+(5*4)+(4*0)+(3*2)+(2*3)+(1*7)=63
63 % 10 = 3
So 4402-37-3 is a valid CAS Registry Number.
4402-37-3Relevant academic research and scientific papers
Reference Data - Diacyl Acid Dihydrazides
Al-Talib, Mahmoud,Tashtoush, Hasan,Odeh, Nedal
, p. 1072 - 1075 (2007/10/02)
N,N'-Diacyl acid dihydrazides were prepared by the reaction of acid dihydrazides with two equivalents of acyl chlorides.The structure of these compounds were elucidated by 1H and 13C NMR spectroscopy.
