112256-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 112256-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,2,5 and 6 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 112256-75:
(8*1)+(7*1)+(6*2)+(5*2)+(4*5)+(3*6)+(2*7)+(1*5)=94
94 % 10 = 4
So 112256-75-4 is a valid CAS Registry Number.
112256-75-4Relevant academic research and scientific papers
A Synthesis of (3S,4R)-3--4-carboxymethyl-2-azetidinone, the Thienamycin Intermadiate, from (S)-Ethyl Lactate
Ito, Yoshio,Terashima, Shiro
, p. 445 - 448 (2007/10/02)
The title thienamycin intermadiate was efficiently synthesized from (S)-ethyl lactate (3) by subjecting (3S,4S)-32-acetyl-4--2-azetidinone readily obtainable from 3, to sequential reactions in which base catalyzed elimination and reg
