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94841-52-8

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94841-52-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 94841-52-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,8,4 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 94841-52:
(7*9)+(6*4)+(5*8)+(4*4)+(3*1)+(2*5)+(1*2)=158
158 % 10 = 8
So 94841-52-8 is a valid CAS Registry Number.

94841-52-8Relevant articles and documents

Production of L-tryptophan by enantioselective hydrolysis of d,l-tryptophanamide using a newly isolated bacterium

Xu, Jian-Miao,Chen, Ben,Wang, Yuan-Shan,Zheng, Yu-Guo

, p. 1262 - 1270 (2013)

Bacterial strain ZJB-09211 capable of amidase production has recently been isolated from soil samples. The strain is able to asymmetrically hydrolyze l-tryptophanamide from d,l-tryptophanamide to produce l-tryptophan in high yield and with excellent stereoselectivity (enantiomeric excess > 99.9 %, and enantiomeric ratio > 200). Strain ZJB-09211 has been identified as Flavobacterium aquatile based on the cell morphology analysis, physiological tests, and the 16S rDNA sequence analysis. Optimization of the fermentation medium led to an about six-fold increase in the amidase activity of strain ZJB-09211, which reached 501.5 U L-1. Substrate specifity and stereoselectivity investigations revealed that amidase of F. aquatile possessed a broad substrate spectrum and high enantioselectivity.

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