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137438-90-5

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137438-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137438-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,3 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137438-90:
(8*1)+(7*3)+(6*7)+(5*4)+(4*3)+(3*8)+(2*9)+(1*0)=145
145 % 10 = 5
So 137438-90-5 is a valid CAS Registry Number.

137438-90-5Relevant articles and documents

Synthesis of di-O-glycosyl derivatives of methyl α-L-rhamnopyranoside

Nifant'ev, Nikolay E.,Lipkind, Grigory M.,Shashkov, Alexander S.,Kochetkov, Nikolay K.

, p. 109 - 128 (2007/10/02)

The syntheses are described of 2,3-di-O-glycosyl derivatives (1-12) of methyl α-L-rhamnopyranoside where the glycosyl moieties are variously α-L-fucopyranose, β-L-fucopyranose, β-D-glucopyranose, α-D-mannopyranose, and α-L-rhamnopyranose.The syntheses inv

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