Cas 13475-19-9,7-(4-Hydroxy-2-oxo-2H-<1>benzopyran-3-yl)-6,7-dihydro-8H-bis-<1>benzopyrano<4,3-b:3',4'-e>pyran-6,8-dion

13475-19-9

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Basic information

Product Name: 7-(4-Hydroxy-2-oxo-2H-<1>benzopyran-3-yl)-6,7-dihydro-8H-bis-<1>benzopyrano<4,3-b:3',4'-e>pyran-6,8-dion
Synonyms:
CAS NO:13475-19-9
Molecular Formula:
Molecular Weight: 478.414
EINECS: N/A
Product Categories: N/A

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: 7-(4-Hydroxy-2-oxo-2H-<1>benzopyran-3-yl)-6,7-dihydro-8H-bis-<1>benzopyrano<4,3-b:3',4'-e>pyran-6,8-dion(CAS DataBase Reference)
NIST Chemistry Reference: 7-(4-Hydroxy-2-oxo-2H-<1>benzopyran-3-yl)-6,7-dihydro-8H-bis-<1>benzopyrano<4,3-b:3',4'-e>pyran-6,8-dion(13475-19-9)
EPA Substance Registry System: 7-(4-Hydroxy-2-oxo-2H-<1>benzopyran-3-yl)-6,7-dihydro-8H-bis-<1>benzopyrano<4,3-b:3',4'-e>pyran-6,8-dion(13475-19-9)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 13475-19-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 13475-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,7 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13475-19:
(7*1)+(6*3)+(5*4)+(4*7)+(3*5)+(2*1)+(1*9)=99
99 % 10 = 9
So 13475-19-9 is a valid CAS Registry Number.

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13475-19-9Downstream Products

13475-19-9Relevant academic research and scientific papers

Synthesis of coumarin derivatives from 4-oxo-4H-1-benzopyran-3- carboxaldehyde via 3-(arylaminomethylene)chroman-2,4-dione

Bandyopadhyay, Chandrakanta,Ranabir Sur, Kumar,Patra, Ranjan,Sen, Arunabha

, p. 3583 - 3587 (2000)

K-10 Montmorillonite mediated condensation of aldehyde 1 with arylamine 2 affords chroman-2,4-dione 5 which gives tricoumarol 8 by acid hydrolysis, 4-arylamino-3-formylcoumarin 11 and 1-benzopyrano[4,3-b]quinoline 12 on heating with POCl3. 2000

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