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1027638-25-0

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1027638-25-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1027638-25-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,6,3 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1027638-25:
(9*1)+(8*0)+(7*2)+(6*7)+(5*6)+(4*3)+(3*8)+(2*2)+(1*5)=140
140 % 10 = 0
So 1027638-25-0 is a valid CAS Registry Number.

1027638-25-0Relevant articles and documents

A practical high-throughput screening system for feruloyl esterases: Substrate design and evaluation

Zhang, Shuai-Bing,Ma, Xiao-Feng,Pei, Xiao-Qiong,Liu, Jing-Yuan,Shao, Hua-Wu,Wu, Zhong-Liu

experimental part, p. 36 - 40 (2012/05/19)

Feruloyl esterases (FAEs) are a group of important industrial enzymes, which could hydrolyze the ester bonds between hydroxycinnamic acids and arabinose or galactose in hemicellulose present in plant cell walls. To establish a practical high-throughput screening system of feruoyl esterases, two new substrates with modified chromo- or fluoro-phore, 2-chloro-4-nitrophenyl ferulate (CNPF; 1b) and umbelliferyl 5-O-feruolyl-α-L-arabinofuranoside (UFA; 2a), were designed and synthesized. Both substrates provided significantly improved signal-to-noise ratio compared with previously known structural analogues. The chromogenic substrate CNPF could be readily adapted to the high-throughput screening of feruloyl esterase A from Aspergillus niger, one of the most studied FAEs, with the coefficient of variance of as low as 10.3% as determined for a single sequence library. .

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