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85561-91-7

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85561-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85561-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,5,6 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 85561-91:
(7*8)+(6*5)+(5*5)+(4*6)+(3*1)+(2*9)+(1*1)=157
157 % 10 = 7
So 85561-91-7 is a valid CAS Registry Number.

85561-91-7Downstream Products

85561-91-7Relevant articles and documents

THE FLAVONOIDS OF THE RHIZOMES OF Rhodiola rosea. A FLAVONOLIGNAN AND GLYCOSIDES OF HERBACETIN

Zapesochnaya, G. G.,Kurkin, V. A.

, p. 21 - 28 (1983)

Three new derivatives of herbacetin (3,4',5,7,8-pentahydroxyflavone) have been isolated from the rhizomes of roseroot sedum for the first time.Conclusions concerning their structures have been drawn on the basis of chemical transformations and UV, PMR, and mass spectra.The structure of herbacetin 7-O-α-rhamnopyranoside is proposed for rhodionin (I).Rhodiosin (II) has the structure of herbacetin 7-O-(3''-O-β-D-glucopyranosyl-α-L-rhamnopyranoside).The biose of which it contains a residue, which has been called rhodiose, is the first example of a 3-O-β-D-glucopyranosyl-L-rhamnopyranose residue to be found in natural flavonoid glycosides.A probable structure is put forward for the flavonolignan rhodiolin (III) - the product of the oxidative coupling of coniferyl alcohol with the 7,8-dihydroxy grouping of herbacetin.

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