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97499-79-1

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97499-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97499-79-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,4,9 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97499-79:
(7*9)+(6*7)+(5*4)+(4*9)+(3*9)+(2*7)+(1*9)=211
211 % 10 = 1
So 97499-79-1 is a valid CAS Registry Number.

97499-79-1Downstream Products

97499-79-1Relevant articles and documents

Mono-substitution of symmetric diesters: Selectivity of: Mycobacterium smegmatis acyltransferase variants

Finnveden, Maja,Semlitsch, Stefan,He, Oscar,Martinelle, Mats

, p. 4920 - 4927 (2019)

A method for selectively reacting one, out of two identical carboxylic esters in a symmetric diester has been developed. An esterase from Mycobacterium smegmatis (MsAcT) has a restricted active site resulting in a narrow acyl donor specificity. This constraint was used to develop a selective synthesis route from divinyl adipate (a symmetric diester) towards mixed vinyl adipate esters. To find a suitable catalyst, the wild type (wt) MsAcT and two MsAcT variants: A single point mutant (L12A) and a double point mutant (T93A/F154A), were immobilized and studied under solvent-free conditions. Out of the tested catalysts, MsAcT L12A was the most selective for mono-Transesterification of divinyl adipate. When divinyl adipate was reacted with 1.5 equivalents of a hydroxyl vinyl ether full conversion of DVA was observed yielding over 95% mixed diester. Furthermore, the limitations for longer dicarboxylic esters were studied, showing that MsAcT T93A/F154A tolerated up to at least dimethyl sebacate.

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