Cas 82198-54-7,1,4-anhydro-2-O-<bis(4-methylphenyl)methyl>-DL-erythritol

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Check Digit Verification of cas no

The CAS Registry Mumber 82198-54-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,9 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82198-54:
(7*8)+(6*2)+(5*1)+(4*9)+(3*8)+(2*5)+(1*4)=147
147 % 10 = 7
So 82198-54-7 is a valid CAS Registry Number.

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82198-54-7Relevant articles and documents

REGIOSELECTIVE MONOALKYLATION OF THE VICINAL cis-DIOL GROUP IN MANNOPYRANOSIDES USING DIARYLDIAZOALKANES-TIN(II) CHLORIDE

Petursson, Sigthor,wEbber, John M.

, p. 41 - 52 (2007/10/02)

Highly regioselective monoalkylations of the cis-2,3-diol group in mannopyranosides can be achieved with diaryldiazoalkanes in the presence of catalytic amounts of tin(II) chloride.With diazo(diphenyl)methane (1), its 4,4'-dimethyl (2) and 4,4'-dichloro (

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82198-54-7