841209-00-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 841209-00-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,1,2,0 and 9 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 841209-00:
(8*8)+(7*4)+(6*1)+(5*2)+(4*0)+(3*9)+(2*0)+(1*0)=135
135 % 10 = 5
So 841209-00-5 is a valid CAS Registry Number.
841209-00-5Relevant academic research and scientific papers
Synthesis of some thienopyrimidine derivatives
El-Baih, Fatma E. M.,Al-Blowy, Hanan A. S.,Al-Hazimi, Hassan M.
, p. 498 - 513 (2007/10/03)
Thioxothienopyrimidinones, alkylthio- and arylalkylthiothienopyrimidinones, thienopyrimidinones, thienopyrimidines a thienopyrimidinedione and a thienotriazolopyrimidinone were prepared from 2-amino-3-carboethoxy-4,5- disubstituted thiophenes and 2-amino-
