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128503-26-4

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128503-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128503-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,0 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128503-26:
(8*1)+(7*2)+(6*8)+(5*5)+(4*0)+(3*3)+(2*2)+(1*6)=114
114 % 10 = 4
So 128503-26-4 is a valid CAS Registry Number.

128503-26-4Relevant articles and documents

Total asymmetric syntheses of d-lividosamine and 2-acetamido-2,3-dideoxy-d-arabino-hexose derivatives

De Buchteneere, Etienne,Fattori, Daniela,Vogel, Pierre

, p. 10603 - 10620 (2007/10/02)

The "naked sugar" (+)-(1R, 4R)-7-oxabicyclo[2.2.1]hept-5-en-one((+)-2) has been converted to D-lividosamine ((+)-1: 3-deoxy-D-glucosamine) and derivatives via (+)-2-chloro-2,3-dideoxy-5,6-O-isopropyridene-D-arabino-hexono-1,4-lactone ((+)-33) and (+)-2-az

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