221910-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221910-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,9,1 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 221910-91:
(8*2)+(7*2)+(6*1)+(5*9)+(4*1)+(3*0)+(2*9)+(1*1)=104
104 % 10 = 4
So 221910-91-4 is a valid CAS Registry Number.
221910-91-4Relevant academic research and scientific papers
Bag,Von Kiedrowski
, p. 1289 - 1290 (1999)
Synthesis of 2,8-bis(mercaptomethyl)-6H, 12H-5,11- methanodibenzo[b,f][1,5]diazocine (2) and its derivatization to 7 and 8 have been reported.
