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121195-27-5

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121195-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121195-27-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,9 and 5 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121195-27:
(8*1)+(7*2)+(6*1)+(5*1)+(4*9)+(3*5)+(2*2)+(1*7)=95
95 % 10 = 5
So 121195-27-5 is a valid CAS Registry Number.

121195-27-5Relevant articles and documents

A PRACTICAL SYNTHESIS OF DEOXYMANNOJIRIMYCIN AND OF (2S,3R,4R,5R)-3,4,5-TRIHYDROXYPIPECOLIC ACID FROM D-GLUCOSE

Fleet, George W. J.,Ramsden, Nigel G.,Witty, David R.

, p. 327 - 336 (2007/10/02)

Deoxymannojirimycin may be prepared in moderate amounts in an overall yield of 35percent in ten steps from diacetone glucose; the key step is formation of the piperidine ring by intramolecular nucleophilic displacement of a triflate at C-2 of a methyl glucofuranoside by a nitrogen function at C-6, irrespective of the anomeric configuration of the sugar.A synthesis of (2S,3R,4R,5R)-3,4,5-trihydroxypipecolic acid is reported.

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