603-56-5 Usage
Occurance
Chrysosplenetin B is a tetramethoxyflavone that is the 3,6,7,3'-tetramethyl ether derivative of quercetagetin. It has a role as an antiviral agent and a plant metabolite. It is a tetramethoxyflavone and a dihydroxyflavone. It derives from a quercetagetin.
Chrysosplenetin B is an O-methylated flavonol. It can be found in the root of Berneuxia thibetica and in Chamomilla recutita.
Definition
ChEBI: A tetramethoxyflavone that is the 3,6,7,3'-tetramethyl ether derivative of quercetagetin.
Check Digit Verification of cas no
The CAS Registry Mumber 603-56-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,0 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 603-56:
(5*6)+(4*0)+(3*3)+(2*5)+(1*6)=55
55 % 10 = 5
So 603-56-5 is a valid CAS Registry Number.
InChI:InChI=1/C19H18O8/c1-23-11-7-9(5-6-10(11)20)17-19(26-4)16(22)14-12(27-17)8-13(24-2)18(25-3)15(14)21/h5-8,20-21H,1-4H3
603-56-5Relevant articles and documents
O-methylation of flavonoids by cell-free extracts of calamondin orange
Brunet, Gunter,Ibrahim, Ragai K.
, p. 741 - 746 (2007/10/02)
Cell-free extracts of calamondin orange (Citrus mitis) catalysed the O-methylation of almost all hydroxyls of a number of flavonoids, indicating the existence in citrus tissues of ortho, meta, para and 3-O-methyltransferases. The latter, hitherto unreported enzyme, catalysed the formation of 3-O-methyl ethers of galangin and quercetin. The stepwise O-methylation of a number of compounds, especially quercetin and quercetagetin, tends to suggest a coordinated sequence of O-methylations on the surface of a multienzyme complex. The methyl acceptor abilities of the flavonoid substrates used are discussed in relation to their hydroxyl substitution patterns and their negative electron density distribution.
