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200642-84-8

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200642-84-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200642-84-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,6,4 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 200642-84:
(8*2)+(7*0)+(6*0)+(5*6)+(4*4)+(3*2)+(2*8)+(1*4)=88
88 % 10 = 8
So 200642-84-8 is a valid CAS Registry Number.

200642-84-8Upstream product

200642-84-8Relevant articles and documents

Enantiopure β3-neopentylglycine: synthesis and resolution

ter Wiel, Matthijs K.J.,Arnold, Mirjam,Peter, Sandra,Troltsch, Ingo,Merget, Stefan,Glaser, Florian,Schwarm, Michael,Bhatti, Harjinder S.,Kuriakose, Biju,Pol, Suryakant S.,Balamurugan, Mohanasundaram,Joshi, Viral V.

experimental part, p. 478 - 482 (2009/09/08)

A procedure has been developed for the large scale synthesis of enantiopure β3-neopentylglycine and its Cbz-protected derivative. The synthetic route developed in our laboratory features Cbz-protection of the racemic β-amino acid followed by resolution with l-norephedrine and provides the enantiomerically pure Cbz-β-neopentylglycine in good yield and excellent enantiopurity. No toxic or dangerous chemicals are used, allowing the scale-up of this procedure without major safety concerns.

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