144937-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144937-54-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,9,3 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 144937-54:
(8*1)+(7*4)+(6*4)+(5*9)+(4*3)+(3*7)+(2*5)+(1*4)=152
152 % 10 = 2
So 144937-54-2 is a valid CAS Registry Number.
144937-54-2Relevant articles and documents
Syntheses of Ketene Thioselenoacetals and of γ-Unsaturated Se-Alkyl Carboxylic Thionoselenoesters
Lemarie, Margareth,Vallee, Yannick,Worrell, Mark
, p. 6131 - 6134 (1992)
The alkylation of Se-alkyl carboxylic thionoselenoesters enethiolates stereoselectively leads to ketene thioselenoacetals.When the alkylation is conducted with an allylic halide a thio-Claisen rearrangement is observed.