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123457-65-8

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123457-65-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123457-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,5 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123457-65:
(8*1)+(7*2)+(6*3)+(5*4)+(4*5)+(3*7)+(2*6)+(1*5)=118
118 % 10 = 8
So 123457-65-8 is a valid CAS Registry Number.

123457-65-8Downstream Products

123457-65-8Relevant articles and documents

IMPROVED SYNTHESES OF TWO 3-DEOXYALD-2-ULOSONIC ACIDS(KDN,KDO) BY CONDENSATION OF OXALACETIC ACID WITH ALDOSES FOLLOWED BY Ni2+CATALYZED DECARBOXYLATION

Shirai, Ryuichi,Ogura, Haruo

, p. 2263 - 2264 (1989)

Condensation of oxalacetic acid with D-mannose and D-arabinose followed by Ni2+catalyzed decarboxylation gave 3-deoxy-D-glycero-D-galacto-2-nonulosonic acid(KDN) and 3-deoxy-D-manno-2-octulosonic acid(KDO) respectively in high chemical yield and high diastereoselectivity.

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