136343-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136343-88-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,3,4 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 136343-88:
(8*1)+(7*3)+(6*6)+(5*3)+(4*4)+(3*3)+(2*8)+(1*8)=129
129 % 10 = 9
So 136343-88-9 is a valid CAS Registry Number.
136343-88-9Relevant articles and documents
The Vilsmeier Reaction In The Series Of Esters Of Alkyl, Aryl, And Heteryl Keto Acids
Shvedov, V.I.,Fedorova, I.N.
, p. 210 - 214 (2007/10/02)
In the reaction of the esters of aliphatic, aromatic, and heterocyclic keto acids with the Vilsmeier reagent the alkoxycarbonyl group is not affected, while the ketone carbonyl is transformed with the formation of a chloroacrolein containing the alkanoic
