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2,3-DIMETHYL-4-NITROPHENOL, with the molecular formula C8H9NO3, is a yellow crystalline solid characterized by a melting point of 70-72°C. This chemical compound serves as a versatile intermediate in organic synthesis and is utilized as a precursor for the production of various chemicals. Its applications extend to the reagent role in chemical reactions, particularly within the pharmaceutical and agrochemical industries. Due to its potential harmful effects if ingested, inhaled, or in contact with the skin, 2,3-DIMETHYL-4-NITROPHENOL requires careful handling and adherence to safety protocols.

19499-93-5

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19499-93-5 Usage

Uses

Used in Organic Synthesis:
2,3-DIMETHYL-4-NITROPHENOL is used as an intermediate for the synthesis of a variety of organic compounds, contributing to the development of new chemical entities and materials.
Used in Chemical Reactions:
As a reagent, 2,3-DIMETHYL-4-NITROPHENOL is employed in various chemical reactions, facilitating the synthesis of pharmaceuticals and agrochemicals, which are essential for medical and agricultural applications.
Used in Pharmaceutical Industry:
2,3-DIMETHYL-4-NITROPHENOL is used as a precursor in the production of pharmaceuticals, playing a crucial role in the development of new drugs and improving existing ones.
Used in Agrochemical Industry:
Similarly, in the agrochemical sector, 2,3-DIMETHYL-4-NITROPHENOL is utilized as a precursor for the synthesis of agrochemicals, which are vital for crop protection and enhancement of agricultural productivity.
Given the compound's potential hazards, it is imperative that 2,3-DIMETHYL-4-NITROPHENOL is handled with care, using appropriate safety measures to mitigate risks associated with its use in these applications.

Check Digit Verification of cas no

The CAS Registry Mumber 19499-93-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,9 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19499-93:
(7*1)+(6*9)+(5*4)+(4*9)+(3*9)+(2*9)+(1*3)=165
165 % 10 = 5
So 19499-93-5 is a valid CAS Registry Number.
InChI:InChI=1/C8H9NO3/c1-5-6(2)8(10)4-3-7(5)9(11)12/h3-4,10H,1-2H3

19499-93-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,3-DIMETHYL-4-NITROPHENOL

1.2 Other means of identification

Product number -
Other names 2,3-DiMethyl-4-nitrophenol

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:19499-93-5 SDS

19499-93-5Relevant academic research and scientific papers

PROCESS FOR PREPARING 1, 2-BENZENEDIMETHANOL COMPOUND

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Paragraph 0527, (2021/01/22)

A process for preparing a compound represented by Formula [1], the process comprising a step of hydrolyzing a compound represented by Formula [2] under an acidic or basic condition, and a step of reacting a compound represented by Formula [3] with a metal acetate salt, and a step of halogenating a compound represented by Formula [4]; a process for preparing a compound represented by Formula [1] comprising a step of reacting a compound represented by Formula [3] with a metal acetate salt, and then, adding alcohol, water, or base to the reaction solution to perform reaction; a process for preparing a compound represented by Formula [1] comprising a step of reacting a compound represented by Formula [3] under a presence or absence of a base, an ionic liquid and a metal sulfate salt, in water or a mixed solvent of water and an organic solvent; a compound represented by Formula [2] or a salt of the same; and a compound represented by Formula [3] or a salt of the same.

FORMATION OF DIENONES ON THE REACTION OF CRESOLS, XYLENOLS, AND 2-NAPHTHOL WITH NITROGEN DIOXIDE: OBSERVATION OF KETO TAUTOMERS OF NITROPHENOLS

Fischer, Alfred,Mathivanan, N.

, p. 1869 - 1872 (2007/10/02)

Reaction of o- and p-cresol, the xylenols, and 2-naphthol with nitrogen dioxide gives nitrocyclohexadienones and nitrophenols.Secondary nitrodienones, the keto tautomers of the nitrophenols, have been observed in several cases and are intermediates in the formation of the nitrophenols.

ipso Nitration. XXIV. Nitration of 2-methylphenols. Formation and rearrangement of 6-methyl-6-nitrocyclohexa-2,4-dienones

Cross, Gordon G.,Fischer, Alfred,Henderson, George N.,Smyth, Trevor A.

, p. 1446 - 1451 (2007/10/02)

Nitration of o-cresol and some mono-, di-, and trimethyl derivatives in acetic anhydride at -60 deg C gives 6-methyl-6-nitrocyclohexa-2,4-dienones.The dienones are more labile than the isomeric 4-methyl-4-nitrocyclohexa-2,5-dienones and, if the 2-position of the dienone is not blocked, undergo regiospecific rearrangement to 6-nitro-o-cresols. 2,3,6-Trimethyl- and 2,3,5,6-tetramethylphenol also give a 2,5-dienone with nitro attached to a secondary carbon.

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