123990-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123990-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,9 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123990-91:
(8*1)+(7*2)+(6*3)+(5*9)+(4*9)+(3*0)+(2*9)+(1*1)=140
140 % 10 = 0
So 123990-91-0 is a valid CAS Registry Number.
123990-91-0Relevant articles and documents
Rhodium Acetate Catalyzes the Addition of Carbenoids α- to Ether Oxygens
Adams, Julian,Poupart, Marc-Andre,Grenier, Louis,Schaller, Chris,Ouimet, Nathalie,Frenette, Richard
, p. 1749 - 1752 (2007/10/02)
Diazo-carbonyl compounds, when catalyzed by rhodium acetate, insert preferentially adjacent to ether oxygens.This phenomenon was exploited to develop a synthesis of 3(2H)-furanones.
