Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

15501

Sigma-Aldrich

ECOL

≥98% (HPLC)

Synonym(s):

4-(Methylamino)phenol hemisulfate salt, Metol

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
C7H9NO · 1/2H2SO4
CAS Number:
55-55-0
Molecular Weight:
172.19
Beilstein/REAXYS Number:
3919382
EC Number:
200-237-1
MDL number:
MFCD00013140
UNSPSC Code:
12352100
PubChem Substance ID:
57647376
NACRES:
NA.22

assay

≥98% (HPLC)

autoignition temp.

989 °F

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

Looking for similar products? Visit Product Comparison Guide

Legal Information

signalword

Warning

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

494.6 °F - closed cup

flash_point_c

257 °C - closed cup

ppe

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCG4180
BCCD8686
BCBX5235
BCBV8762
BCBT8948

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service