109731-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109731-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,3 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109731-21:
(8*1)+(7*0)+(6*9)+(5*7)+(4*3)+(3*1)+(2*2)+(1*1)=117
117 % 10 = 7
So 109731-21-7 is a valid CAS Registry Number.
109731-21-7Relevant articles and documents
Phosphorhydrazides as urease and acetylcholinesterase inhibitors: biological evaluation and QSAR study
Asadi, Lida,Gholivand, Khodayar,Zare, Karim
, p. 1213 - 1223 (2016)
New phosphorhydrazide compounds (1–7, 13, 15–16) and thiophosphorhydrazide (14 and 17) were synthesized and characterized by 31P, 13C, 1H NMR and IR spectroscopy. Furthermore, the crystal structure of compound (C6/su