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74707-05-4

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74707-05-4 Usage

Chemical compound

2,5-Dibromo-3,4-dimethylthiophene

Structure

Thiophene derivative with two bromine atoms and two methyl groups attached to the carbon atoms in the third and fourth positions

Primary use

Intermediate in the synthesis of other organic compounds, particularly in the production of pharmaceuticals and agrochemicals

Other use

Development of materials for organic electronic devices

Odor

Strong

Potential harm

Potentially harmful if ingested, inhaled, or absorbed through the skin

Safety precautions

Proper safety precautions should be taken when handling this chemical

Check Digit Verification of cas no

The CAS Registry Mumber 74707-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,0 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74707-05:
(7*7)+(6*4)+(5*7)+(4*0)+(3*7)+(2*0)+(1*5)=134
134 % 10 = 4
So 74707-05-4 is a valid CAS Registry Number.

74707-05-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,5-dibromo-3,4-dimethylthiophene

1.2 Other means of identification

Product number -
Other names 2,5-Dibrom-3,4-dimethyl-thiophen

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:74707-05-4 SDS

74707-05-4Relevant articles and documents

Electrochromic device having a novel organic compound and

-

Paragraph 0180; 0182, (2017/01/31)

An organic compound having the following general formula [1]: wherein A1 and A2 independently denote a hydrogen atom or a substituent, R7 denotes a hydrogen atom or a substituent, R2 to R5 denote a substituent, R1 and R6 independently denote a hydrogen at

Porphyrin compositions

-

, (2008/06/13)

Novel metal porphyrin compositions useful as organic phosphors are provided. The novel compositions are prepared from commercially available porphyrin-containing starting materials. In one instance a novel palladium-containing porphyrin composition having a number average molecular weight of greater than 12,000 grams per mole was prepared from 5,10,15,20-tetrakis(3′,5′-di(hydroxy)phenyl)-21H-23H-porphyrin by reaction first with palladium(II) acetylacetonate, followed by reaction with 2-bromo-2-methylpropionyl bromide, and subsequent group transfer reaction of the alpha-bromo ester groups with 9,9-dioctyl-2-vinylfluorene in the presence of CuBr as a radical initiator. The product polymer exhibited a number average molecular weight of 12,884 grams per mole, a weight average molecular weight of 14,338 grams per mole, and a robust red phosphorescent emission. Porphyrin containing copoylmers comprising structural units derived from 9,9-dioctyl-2-vinylfluorene and 9-anthracenylmethyl methacrylate were prepared in a similar fashion.

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