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Dibenz[b,f]oxepin is a tricyclic organic compound with the molecular formula C13H10O. It is a colorless crystalline solid that is insoluble in water but soluble in organic solvents. Dibenz[b,f]oxepin is a derivative of dibenzoxepin, which is a type of heterocyclic compound with a seven-membered ring containing one oxygen atom. Dibenz[b,f]oxepin is not known to have any significant biological activity or commercial applications, and it is primarily of interest to researchers studying the synthesis and properties of complex organic molecules. Due to its limited relevance, there is not much information available on its specific uses or potential hazards.

257-05-6

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257-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257-05-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,5 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 257-05:
(5*2)+(4*5)+(3*7)+(2*0)+(1*5)=56
56 % 10 = 6
So 257-05-6 is a valid CAS Registry Number.
InChI:InChI=1/C14H10O/c1-3-7-13-11(5-1)9-10-12-6-2-4-8-14(12)15-13/h1-10H

257-05-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name benzo[b][1]benzoxepine

1.2 Other means of identification

Product number -
Other names dibenzo[b,f]oxepine

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:257-05-6 SDS

257-05-6Relevant academic research and scientific papers

Three-step synthesis of (thio)xanthene and dibenzothiepine/dibenzoxepine by an intramolecular Mizoroki-Heck reaction of diaryl (thio)ethers

Jepsen, Tue Heesgaard,Larsen, Mogens,J?rgensen, Morten,Nielsen, Mogens Br?ndsted

, p. 418 - 422 (2012/03/11)

We present a novel three-step protocol for preparing xanthene/thioxanthene and dibenzothiepine/dibenzoxepine from readily available starting materials. The Mizoroki-Heck cyclization as the final step was optimized to afford full conversion of the corresponding diaryl (thio)ethers and furthermore to achieve reasonably good selectivity between the 6-exo and the 7-endo products. Georg Thieme Verlag Stuttgart · New York.

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