73187-61-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73187-61-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,8 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73187-61:
(7*7)+(6*3)+(5*1)+(4*8)+(3*7)+(2*6)+(1*1)=138
138 % 10 = 8
So 73187-61-8 is a valid CAS Registry Number.
73187-61-8Relevant articles and documents
Reaction of N1,N2-Diarylamidines with Chloranil and 2,3-Dichloro-1,4-naphthoquinone
Doepp, Dietrich,Gomaa, Mohsen Abdel-Motaal,Henkel, Gerald,El-Din, Ahmed Mokhtar Nour
, p. 603 - 610 (2007/10/02)
Nucleophilic attack by N2 of N1,N2-diarylformamides 1a-c on C-2 of chloranil (2) and subsequently by N1 on C-1 of 2 initiates the formation of benzimidazolinones 8a-c.In contrast, when 1b-e is reacted with 2,3-d
