Cas 16344-49-3,2,5-diphenyl-3,4-di(thiophen-2-yl)cyclopenta-2,4 dien-1-one

16344-49-3

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Basic information

Product Name: 2,5-diphenyl-3,4-di(thiophen-2-yl)cyclopenta-2,4 dien-1-one
Synonyms: 2,5-diphenyl-3,4-di(thiophen-2-yl)cyclopenta-2,4 dien-1-one
CAS NO:16344-49-3
Molecular Formula:
Molecular Weight: 396.533
EINECS: N/A
Product Categories: N/A
Mol File: 16344-49-3.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: 2,5-diphenyl-3,4-di(thiophen-2-yl)cyclopenta-2,4 dien-1-one(CAS DataBase Reference)
NIST Chemistry Reference: 2,5-diphenyl-3,4-di(thiophen-2-yl)cyclopenta-2,4 dien-1-one(16344-49-3)
EPA Substance Registry System: 2,5-diphenyl-3,4-di(thiophen-2-yl)cyclopenta-2,4 dien-1-one(16344-49-3)

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: 16344-49-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 16344-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,3,4 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16344-49:
(7*1)+(6*6)+(5*3)+(4*4)+(3*4)+(2*4)+(1*9)=103
103 % 10 = 3
So 16344-49-3 is a valid CAS Registry Number.

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16344-49-3Relevant articles and documents

Synthesis of 2,3,4,5-Tetra(2-thienyl)cyclopentadienone Exhibiting Considerable Substituent Effects and Synthetic Utility

Kawase, Takeshi,Ohsawa, Takeshi,Enomoto, Tetsuya,Oda, Masaji

, p. 1333 - 1336 (1994)

2,3,4,5-Tetra(2-thienyl)cyclopentadienone and the related compounds, here first synthesized, show large bathochromic shift of visible absorptions and appreciably higher amphoteric redox properties than tetraphenylcyclopentadienone; 2-thienyl groups at 2,5-positions exert stronger substituent effects than those at 3,4-positions.

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