117979-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117979-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,7 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117979-63:
(8*1)+(7*1)+(6*7)+(5*9)+(4*7)+(3*9)+(2*6)+(1*3)=172
172 % 10 = 2
So 117979-63-2 is a valid CAS Registry Number.
117979-63-2Relevant articles and documents
Synthesis of some novel benzylidenehydantoins: Amino acids derivatives
El-Sayed, Ragab A.
, p. 91 - 94 (2001)
5-Benzylidenehydantoin reacts with chlorosulfonic acid to give the corresponding p-sulfonyl chloride. Condensation of the latter with amino acids leads to sulfonylamino acid derivatives, which on coupling with glycine methyl ester hydrochloride in THF-Et