Cas 197908-15-9,Toluene-4-sulfonic acid 6-hydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester

197908-15-9

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Basic information

Product Name: Toluene-4-sulfonic acid 6-hydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester
Synonyms:
CAS NO:197908-15-9
Molecular Formula:
Molecular Weight: 468.484
EINECS: N/A
Product Categories: N/A
Mol File: 197908-15-9.mol
Article Data: 1

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: Toluene-4-sulfonic acid 6-hydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester(CAS DataBase Reference)
NIST Chemistry Reference: Toluene-4-sulfonic acid 6-hydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester(197908-15-9)
EPA Substance Registry System: Toluene-4-sulfonic acid 6-hydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester(197908-15-9)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 197908-15-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 197908-15-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,0 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 197908-15:
(8*1)+(7*9)+(6*7)+(5*9)+(4*0)+(3*8)+(2*1)+(1*5)=189
189 % 10 = 9
So 197908-15-9 is a valid CAS Registry Number.

197908-15-9Upstream product

10176-71-3 ladanein

197908-15-9Downstream Products

197908-15-9Relevant articles and documents

Studies of the selective O-alkylation and dealkylation of flavonoids. XXIII. Demethylation behaviors of 6-hydroxy-4',7-dimethoxy-5-tosyloxyflavones with anhydrous aluminum halides in acetonitrile

Horie, Tokunaru,Ohtsuru, Yoshizumi,Minamimoto, Noriko,Kawamura, Yasuhiko,Tsukayama, Masao,Yamashita, Kazuyo

, p. 1573 - 1578 (1997)

In the demethylation of 6-hydroxy-3,4',7-trimethoxy-5-tosyloxyflavone (1) with anhydrous aluminum bromide (AlBr3) or anhydrous aluminum chloride- sodium iodide (AlCl3-NaI) in acetonitrile, the elimination of the 5-tosyloxy group proc

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