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139921-55-4

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139921-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139921-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139921-55:
(8*1)+(7*3)+(6*9)+(5*9)+(4*2)+(3*1)+(2*5)+(1*5)=154
154 % 10 = 4
So 139921-55-4 is a valid CAS Registry Number.

139921-55-4Downstream Products

139921-55-4Relevant 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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