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201049-00-5

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201049-00-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201049-00-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,0,4 and 9 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 201049-00:
(8*2)+(7*0)+(6*1)+(5*0)+(4*4)+(3*9)+(2*0)+(1*0)=65
65 % 10 = 5
So 201049-00-5 is a valid CAS Registry Number.

201049-00-5Relevant articles and documents

Synthesis of 2S-[2-2H]-kynurenine and use in kinetic isotope effect studies with kynureninase

Ross, Fiona C.,Botting, Nigel P.,Leeson, Paul D.

, p. 15761 - 15770 (2007/10/03)

2S-[2-2H]-Kynurenine has been synthesised by two different routes. Diacetylation/racemisation of racemic kynurenine in deuterium oxide followed by acylase catalysed resolution provides the most direct method. The alternative is to prepare 2S-[2-2H]-tryptophan by a similar procedure and then convert this through to 2S-[2-2H]-kynurenine via ozonolysis. Preliminary results on measurements of the primary deuterium isotope effect, and solvent isotope effect, are described.

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