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915154-71-1

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915154-71-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 915154-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,5,1,5 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 915154-71:
(8*9)+(7*1)+(6*5)+(5*1)+(4*5)+(3*4)+(2*7)+(1*1)=161
161 % 10 = 1
So 915154-71-1 is a valid CAS Registry Number.

915154-71-1Upstream product

915154-71-1Relevant articles and documents

Scalable synthesis of L-lduronic acid derivatives via stereocontrolled cyanohydrin reaction for synthesis of heparin-related disaccharides

Hansen, Steen Uldall,Barath, Marek,Salameh, Bader A.B.,Pritchard, Robin G.,Stimpson, William T.,Gardiner, John M.,Jayson, Gordon C.

, p. 4528 - 4531 (2009)

L-ldo cyanohydrln 3 was prepared from dlacetone-D-glucose In four steps and 76% overall yield and 90% de via cyanohydrin reaction of aldehyde 2. This process can be scaled to provide >1 mol of pure L-Ido cyanohydrin 3. Cyanohydrin 3 was elaborated to 1,2-Isopropylldineprotected L-ldo nitrile (8), lduronic amide 9, and known carboxy ester 10. Coupling of 8 and 9 with glucosamine donors leads to new types (6-cyano and 6-carboxamlde) of heparin-related disaccharides.

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