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171973-40-3

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171973-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171973-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,9,7 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 171973-40:
(8*1)+(7*7)+(6*1)+(5*9)+(4*7)+(3*3)+(2*4)+(1*0)=153
153 % 10 = 3
So 171973-40-3 is a valid CAS Registry Number.

171973-40-3Downstream Products

171973-40-3Relevant articles and documents

SYNTHESIS OF 7-O-β-D-GLUCOPYRANOSIDES OF ISOFLAVONES AND THEIR HETEROCYCLIC ANALOGUES

Pivovarenko, V. G.,Khilya, V. P.

, p. 181 - 186 (1993)

The products of the interaction of α-acetobromoglucose with 2,4,5-trihydroxyphenyl benzyl ketone and 2,4-dihydroxyphenyl 4'-hydroxybenzyl ketone and also with their heterocyclic analogues, which are present completely or partially in the enolic form, have been investigated.It has been shown that in this reaction a tetra-O-acetylglucosyl residue is added at the 4-OH hydroxy group of the phenyl residue of the ketone.The compounds obtained have been converted into isoflavone 7-O-glucosides by the action of the Vilsmeier reagent or acetoformic anhydride.

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