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469879-69-4

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469879-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 469879-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,6,9,8,7 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 469879-69:
(8*4)+(7*6)+(6*9)+(5*8)+(4*7)+(3*9)+(2*6)+(1*9)=244
244 % 10 = 4
So 469879-69-4 is a valid CAS Registry Number.

469879-69-4Relevant articles and documents

Septanose carbohydrates. VII. Preparation of mono-O-isopropylidene derivatives of methyl β-D-glucoseptanoside and preparation of methyl α-L-idoseptanoside and its derivatives

Tran, Trung Q.,Stevens, John D.

, p. 171 - 178 (2007/10/03)

Three mono-O-isopropylidene derivatives of methyl β-D-glucoseptanoside have been prepared by acid-catalysed hydrolysis of methyl 2,3:4,5-di-O-isopropylidene-β-D-glucoseptanoside or by acetonation of methyl β-D-glucoseptanoside. Two of these derivatives have been used for the preparation of methyl 2,3-O-isopropylidene-α-L-idoseptanoside (8a) and methyl 3,4-O-isopropylidene-α-L-idoseptanoside (10a). Hydrolysis of (10a) yielded methyl α-L-idoseptanoside (12a) and acetonation of (8a) and (12a) yielded methyl 2,3:4,5-di-O-isopropylidene-α-L-idoseptanoside. Possible conformations of these compounds are discussed.

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