135718-67-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135718-67-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,7,1 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 135718-67:
(8*1)+(7*3)+(6*5)+(5*7)+(4*1)+(3*8)+(2*6)+(1*7)=141
141 % 10 = 1
So 135718-67-1 is a valid CAS Registry Number.
InChI:InChI=1/C17H19N3S2.HI/c1-21-17-19-16-14(12-9-5-6-10-13(12)22-16)15(20(17)18)11-7-3-2-4-8-11;/h2-4,7-8,15H,5-6,9-10,18H2,1H3;1H
135718-67-1Relevant articles and documents
Thiophene isosteres: synthesis and biological evaluation of 3-substituted derivatives of 4-phenyl-2-thioxo-benzothienopyrimidine
Vega, S,Alonso, J,Diaz, JA,Junquera, F,Perez, C,et al.
, p. 323 - 329 (2007/10/02)
As an extension of a previous work, in which a series of 4-phenyl-2-thioxo-benzothienopyrimidines were synthesized, a new series of 3-amino derivatives of this ring system has been prepared.The products obtained together with those reported in