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Sigma-Aldrich

4-(Methylamino)phenol sulfate

Technipur®

Synonym(s):

4-(Methylamino)phenol hemisulfate salt, N-Methyl-p-aminophenol sulphate, p-Methyl aminophenol sulfate, Metol

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About This Item

Linear Formula:
C7H9NO · 1/2H2SO4
CAS Number:
Molecular Weight:
172.19
Beilstein:
3919382
MDL number:
UNSPSC Code:
12352100
NACRES:
NA.05

Quality Level

autoignition temp.

989 °F

pH

3.5-4.5 (20 °C, 50 g/L in H2O)

mp

260 °C (dec.) (lit.)

SMILES string

OS(O)(=O)=O.CNc1ccc(O)cc1.CNc2ccc(O)cc2

InChI

1S/2C7H9NO.H2O4S/c2*1-8-6-2-4-7(9)5-3-6;1-5(2,3)4/h2*2-5,8-9H,1H3;(H2,1,2,3,4)

InChI key

ZVNPWFOVUDMGRP-UHFFFAOYSA-N

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General description

4-(Methylamino)Phenol Sulfate, a substituted phenol, is an aromatic reducing agent, majorly used as a hair dye and a monochrome photographic developer chemical.

Application

4-(Methylamino)Phenol Sulfate can be used as a corrosion inhibitor. It is used as a reagent in several reactions employed to determine the levels of contaminants and drugs by various means, particularly by electrochemical or spectrophotometric methods. 4-(Methylamino)Phenol Sulfate is also used as an organic reducing agent to prepare silver nanomaterials.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Sens. 1 - STOT RE 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

494.6 °F - closed cup

Flash Point(C)

257 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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ZrO2 supported Nano-ZSM-5 nanocomposite material for the nanomolar electrochemical detection of metol and bisphenol A
Kaur B, et al.
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Spectrophotometric Determination of Zidovudine in Pharmaceuticals Based on Charge-Transfer Complexation Involving N-Bromosuccinimide, Metol and Sulphanilic Acid as Reagents
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Journal of Chemistry, 4 (2007)
Metol as Corrosion Inhibitor for zinc
Praveen BM, et al.
Transactions of the Indian Institute of Metals, 65, 297-302 (2012)

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