112767-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 112767-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,7,6 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 112767-99:
(8*1)+(7*1)+(6*2)+(5*7)+(4*6)+(3*7)+(2*9)+(1*9)=134
134 % 10 = 4
So 112767-99-4 is a valid CAS Registry Number.
112767-99-4Relevant articles and documents
Synthesis of Coumarins by Nucleophilic Denitrocyclization Reaction
Oda, Noriichi,Yoshida, Yukio,Nagai, Shin-ichi,Ueda, Taisei,Sakakibara, Jinsaku
, p. 1796 - 1802 (2007/10/02)
2-propanedioic acids(2a-c) were denitrocyclized to coumarins (3a-c) by heating in quinoline in the presence of copper powder. 2-(4-Methoxiphenyl)-3-(2-nitrophenyl)-(Z)-2-propenoic acids (6a,b,d,e) were also similarly denitrocycli
