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153381-38-5

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153381-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153381-38-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,3,8 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 153381-38:
(8*1)+(7*5)+(6*3)+(5*3)+(4*8)+(3*1)+(2*3)+(1*8)=125
125 % 10 = 5
So 153381-38-5 is a valid CAS Registry Number.

153381-38-5Downstream Products

153381-38-5Relevant articles and documents

HOMOCHIRAL HETEROORGANIC ANALOGS OF NATURAL COMPOUNDS. I. PREPARATIVE BIOCATALYTIC METHOD OF OBTAINING FLUORINE-CONTAINING L- AND D-PHENYLGLYCINES

Soloshonok, V. A.,Galaev, I. Yu.,Shvyadas, V. K.,Kozlova, E. V.,Kotik, N. V.,et al.

, p. 228 - 232 (2007/10/02)

A biocatalytic method of obtaining homochiral o- and p-fluorine-substituted phenylglycines by enantiomeric hydrolysis from N-phenylacetyl or N-acetyl derivatives under the action of Escherichia coli penicillin acylase or Streptoverticillium olivoreticuli aminoacylase is proposed.The L form of the amino acid and the unhydrolyzed D-enantiomer of the initial derivative are separated by extraction and chromatographic methods.The acid hydrolysis of the D-enantiomers of N-phenylacetyl derivatives of fluorine-substituted phenylglycines leads to partial (about 15percent) racemization.With a substantially higher (by two orders of magnitude) concentration of enzyme and an increase in the reaction time it is possible to use penicillinase as a catalyst for the hydrolysis of the D-enantiomer of the N-phenylacetyl derivative not accompanied by any appreciable racemization whatever.

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