136949-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136949-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,9,4 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 136949-22:
(8*1)+(7*3)+(6*6)+(5*9)+(4*4)+(3*9)+(2*2)+(1*2)=159
159 % 10 = 9
So 136949-22-9 is a valid CAS Registry Number.
136949-22-9Relevant academic research and scientific papers
SYNTHESIS OF 6-PHENYLTHIOBENZOTHIOPHENES
Kapustina, M. V.,Kharizomenova, I. A.,Shvedov, V. I.
, p. 425 - 427 (2007/10/02)
A method of synthesizing 2-acetylamino-7-hydroxy-6-phenylthio-3-carbethoxybenzothiophenes from 6-phenylthio-7-oxo-4,5,6,7-tetrahydrobenzothiophenes has been developed.A method is also proposed for synthesis of 7-phenylthiobenzothienopyrimidin
