223687-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223687-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,6,8 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223687-91:
(8*2)+(7*2)+(6*3)+(5*6)+(4*8)+(3*7)+(2*9)+(1*1)=150
150 % 10 = 0
So 223687-91-0 is a valid CAS Registry Number.
223687-91-0Relevant articles and documents
A general procedure for the synthesis of acylguanidines derived from aliphatic and aromatic amines
Padmanabhan,Lavin,Thakkar,Durant
, p. 2491 - 2497 (2001)
Condensation of aliphatic and aromatic amines with 1-aroyl-S-methylisothiourea in the presence of triethylamine affords acylguanidines in moderate to good yields. An improved procedure for the generation of 1-aroyl-S-methylisothiourea derivatives is descr