Cas 91145-32-3,4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-[(4-nitrophenyl)methylene]-, 1,1-dioxide

91145-32-3

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Basic information

Product Name: 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-[(4-nitrophenyl)methylene]-, 1,1-dioxide
Synonyms:
CAS NO:91145-32-3
Molecular Formula: C16H11NO5S
Molecular Weight: 329.333
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: 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-[(4-nitrophenyl)methylene]-, 1,1-dioxide(CAS DataBase Reference)
NIST Chemistry Reference: 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-[(4-nitrophenyl)methylene]-, 1,1-dioxide(91145-32-3)
EPA Substance Registry System: 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-[(4-nitrophenyl)methylene]-, 1,1-dioxide(91145-32-3)

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: 91145-32-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 91145-32-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,4 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91145-32:
(7*9)+(6*1)+(5*1)+(4*4)+(3*5)+(2*3)+(1*2)=113
113 % 10 = 3
So 91145-32-3 is a valid CAS Registry Number.

91145-32-3Upstream product

101001-11-0 3-[1-(4-Nitro-phenyl)-meth-(Z)-ylidene]-thiochroman-4-one

91145-32-3Downstream Products

93362-75-5 3,4-Dihydro-3-isopropyl-2-(4-methylpiperazino)-4-(4-nitrophenyl)-2H,5H-<1>benzothiopyrano<4,3-b>pyran-6,6-dioxid

91145-32-3Relevant academic research and scientific papers

7-Phenylbenzopyrano(or -thiopyrano)pyranes from 3-Benzylidenechromanones (or -thiochromanones)

Eiden, Fritz,Felbermeir, Gerda

, p. 861 - 867 (1984)

Cycloaddition reactions of the 3-benzylidenechromanones and -thiochromanones 3a-3f with the enamines 5 and 10a-10c resulted in the formation of the amino- or phenyl-benzopyrano(or -thiopyrano)dihydropyranes 6a-6f and 11a-11d.Compounds 6e and 11b we

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