139235-94-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139235-94-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,3 and 5 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139235-94:
(8*1)+(7*3)+(6*9)+(5*2)+(4*3)+(3*5)+(2*9)+(1*4)=142
142 % 10 = 2
So 139235-94-2 is a valid CAS Registry Number.
139235-94-2Relevant academic research and scientific papers
An enzymatic route to florfenicol
Clark,Fischer,Schumacher
, p. 891 - 894 (2007/10/02)
Racemic ethyl threo-3-14-methylthiophenyl)serinate is resolved by enzymatic hydrolysis using protease from Streptomyces griseus and both stereoisomers are converted to D-threo-4,5-dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolemethan ol, thereby giving a formal synthesis of florfenicol.
