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69750

Sigma-Aldrich

Metol

purum, for photographic purposes, ≥98.0% (HPLC)

Synonym(s):

4-(Methylamino)phenol hemisulfate salt, Metol

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About This Item

Linear Formula:
C7H9NO · 1/2H2SO4
CAS Number:
Molecular Weight:
172.19
Beilstein/REAXYS Number:
3919382
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

grade

for photographic purposes
purum

Quality Level

assay

≥98.0% (HPLC)

form

crystals

autoignition temp.

989 °F

impurities

≤1% aminophenol

color

white to faint beige

mp

260 °C (dec.) (lit.)

solubility

H2O: 50 mg/mL, clear

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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Related Categories

Legal Information

signalword

Warning

Hazard Classifications

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

wgk_germany

WGK 3

flash_point_f

closed cup

flash_point_c

closed cup

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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Ayman A Gouda et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 130, 480-487 (2014-05-13)
Simple, rapid and accurate high performance liquid chromatographic (HPLC) and spectrophotometric methods are described for determination of antihistaminic acrivastine in capsules. The first method (method A) is based on accurate, sensitive and stability indicating chromatographic separation method. Chromolith® Performance RP-18e

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