Cas 74794-99-3,(5E,8E,10E)-16,17,18,19-Tetradehydrodibenzo[d,j]thiacyclopentadecin

74794-99-3

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Basic information

Product Name: (5E,8E,10E)-16,17,18,19-Tetradehydrodibenzo[d,j]thiacyclopentadecin
Synonyms: (5E,8E,10E)-16,17,18,19-Tetradehydrodibenzo[d,j]thiacyclopentadecin
CAS NO:74794-99-3
Molecular Formula: C22H14S
Molecular Weight: 310.41156
EINECS: N/A
Product Categories: N/A
Mol File: 74794-99-3.mol

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: /
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: (5E,8E,10E)-16,17,18,19-Tetradehydrodibenzo[d,j]thiacyclopentadecin(CAS DataBase Reference)
NIST Chemistry Reference: (5E,8E,10E)-16,17,18,19-Tetradehydrodibenzo[d,j]thiacyclopentadecin(74794-99-3)
EPA Substance Registry System: (5E,8E,10E)-16,17,18,19-Tetradehydrodibenzo[d,j]thiacyclopentadecin(74794-99-3)

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: 74794-99-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 74794-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,9 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74794-99:
(7*7)+(6*4)+(5*7)+(4*9)+(3*4)+(2*9)+(1*9)=183
183 % 10 = 3
So 74794-99-3 is a valid CAS Registry Number.

74794-99-3Upstream product

74794-98-2 2-(o-ethynylphenyl)vinyl 4-(o-ethynylphenyl)-1,3-butadienyl sulfide

74794-99-3Downstream Products

74794-99-3Relevant academic research and scientific papers

The Benzannelated Annulenes. Dibenzo-6,8-bisdehydrothia-, -, and Dibenzo-8,10-bisdehydrothiaannulene

Ojima, Juro,Kusaki, Kiyomi,Wada, Kazuyo,Nakagawa, Yukiko

, p. 1127 - 1131 (2007/10/02)

The title compounds have been synthesized by the double Wittig reaction of bis sulfide dibromide with o-ethynylbenzaldehyde and/or o-ethynylcinnamaldehyde, followed by the oxidative coupling.The 1H-NMR spectra of these compounds gave no evidence for a ring current.

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