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82834-44-4

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82834-44-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82834-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,3 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82834-44:
(7*8)+(6*2)+(5*8)+(4*3)+(3*4)+(2*4)+(1*4)=144
144 % 10 = 4
So 82834-44-4 is a valid CAS Registry Number.

82834-44-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-bromo-5-methyl-2-nitrothiophene

1.2 Other means of identification

Product number -
Other names 3-bromo-5-methyl-2-nitrothiophen

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:82834-44-4 SDS

82834-44-4Upstream product

82834-44-4Relevant articles and documents

Kinetics of the Reactions of Some 5-Bromo-2-nitro-3-R-thiophens, 3,4-dibromo-2-nitro-5-R-thiophens, 3-Bromo-2-nitro-5-R-thiophens, and 2-Bromo-3-nitro-5-R-thiophens with Nucleophiles in Methanol

Consiglio, Giovanni,Spinelli, Domenico,Gronowitz, Salo,Hoernfeldt, Anna-Britta,Maltesson, Britta,Noto, Renato

, p. 625 - 630 (2007/10/02)

The reactivity of some 5-bromo-2-nitro-3-R-thiophens (Ia-g; R=H, Me, Et, Prn, n-hexyl, Pri, and But), 3,4-dibromo-2-nitro-5-R-thiophens (IIa and b; R=H and Me), 3-bromo-2-nitro-5-R-thiophens (IIIa and b; R=H and Me), and 2-bromo-3-nitro-5-R-thiophens (IVa and b; R=H and Me) with amines and sodium benzenethiolate has been studied in methanol at various temperatures.Piperidinodebromination of compounds (Ia and c) has also been studied in benzene, in dioxan, and in dioxan-water (60:40 and 10:90).Independent of the position of the alkyl group (meta or para with respect to the leaving bromine), an unexpected alkyl activation has been observed, which represents a further exception to the electron-releasing behaviour of alkyl groups.

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