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88299-90-5

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88299-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88299-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,2,9 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 88299-90:
(7*8)+(6*8)+(5*2)+(4*9)+(3*9)+(2*9)+(1*0)=195
195 % 10 = 5
So 88299-90-5 is a valid CAS Registry Number.

88299-90-5Relevant articles and documents

METHYLATION OF METHYL 6-O-TRITYL-α-D-MANNOPYRANOSIDE - A NEW ROUTE TO THE SYNTHESIS OF SOME METHYL ETHERS OF D-MANNOSE

Grishkovets, V. I.,Chirva, V. Ya.

, p. 404 - 407 (1983)

The partial methylation of methyl 6-O-trityl-α-D-mannopyranoside by Kuhn's method (BaO, Ba(OH)2*8H2O, CH3I) in dimethylformamide and dimethyl sulfoxide has been studied.Simple methods are proposed for obtaining the 3- and 4-mono-O-, the 2,3-, the 2,4- and 3,4-di-O-, and the 2,3,4-tri-O-methyl ethers of methyl 6-O-trityl-α-D-mannopyranoside.

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