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91274-05-4

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91274-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91274-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,7 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91274-05:
(7*9)+(6*1)+(5*2)+(4*7)+(3*4)+(2*0)+(1*5)=124
124 % 10 = 4
So 91274-05-4 is a valid CAS Registry Number.

91274-05-4Relevant articles and documents

Chiral Lactols, VIII - A Way for the Asymmetric Induction in the Formation of Sugars

Noe, Christian R.,Knollmueller, Max,Ettmayer, Peter

, p. 637 - 644 (2007/10/02)

The substituted glycol aldehyde 4 which bears an enantiomerically pure acetal-type protective group exhibiting the configuration of an α-L-sugar at the acetal centre is subjected to aldolization under basic conditions.The resulting products are reduced and characterized by comparison with reference compounds of known absolute configuration.L-Sugars are formed preferentially with L-erythrose being the main product.

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