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128262-40-8

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128262-40-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128262-40-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,6 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128262-40:
(8*1)+(7*2)+(6*8)+(5*2)+(4*6)+(3*2)+(2*4)+(1*0)=118
118 % 10 = 8
So 128262-40-8 is a valid CAS Registry Number.

128262-40-8Relevant articles and documents

Synthesis, conformational analysis, and the glycosidic coupling reaction of substituted 2,7-dioxabicyclo[4.1.0]heptanes: 1,2-anhydro-3,4-di-O-benzyl-β-L- and β-D-rhamnopyranoses

Chen,Kong,Cao

, p. 107 - 117 (2007/10/02)

1,2-Anhydro-3,4-di-O-benzyl-α-L-rhamnopyranose was synthesized from L-rhamnose, while the D-enantiomer was synthesized from methyl 6-deoxy-2,3-O-isopropylidene-α-D-mannopyranoside. For both of the syntheses, the key intermediates were 2-O-acetyl-3,4-di-O-

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