128756-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128756-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,5 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128756-22:
(8*1)+(7*2)+(6*8)+(5*7)+(4*5)+(3*6)+(2*2)+(1*2)=149
149 % 10 = 9
So 128756-22-9 is a valid CAS Registry Number.
128756-22-9Relevant academic research and scientific papers
An expeditious enantioselective synthesis of γ-lactones
Chong,Mar
, p. 1981 - 1984 (2007/10/02)
α-Alkoxyorganolithium reagents react with α,β-unsaturated trimethylhydrazides to give γ-alkoxytrimethylhydrazides in moderate to good yields. Acid hydrolysis of the latter compounds yields γ-lactones. A short enantioselective route to (S)-hexanolide is described.
