3721-37-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3721-37-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,2 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3721-37:
(6*3)+(5*7)+(4*2)+(3*1)+(2*3)+(1*7)=77
77 % 10 = 7
So 3721-37-7 is a valid CAS Registry Number.
3721-37-7Relevant articles and documents
(E-Z) ISOMERIZATION OF UNSATURATED NITRILES
Prochazka, Milos,Zaruba, Arno
, p. 89 - 95 (2007/10/02)
Equilibrium data of the title isomerization of X-CH=CH-CN nitriles (X=Cl, CN, OR, SR) have been measured , and the respective ΔG values have been compared with the energy difference calculated by the CNDO/2 method.
