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Merck
CN

1395204

USP

Metacresol

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

m-Cresol, 1-Hydroxy-3-methylbenzene, 3-Hydroxytoluene, 3-Methylphenol

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About This Item

Linear Formula:
CH3C6H4OH
CAS Number:
108-39-4
Molecular Weight:
108.14
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329750376
MDL number:
MFCD00002302
Beilstein/REAXYS Number:
506719

Key Documents

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Product Name

Metacresol, United States Pharmacopeia (USP) Reference Standard

InChI

1S/C7H8O/c1-6-3-2-4-7(8)5-6/h2-5,8H,1H3

SMILES string

Cc1cccc(O)c1

InChI key

RLSSMJSEOOYNOY-UHFFFAOYSA-N

grade

pharmaceutical primary standard

vapor density

3.72 (vs air)

vapor pressure

<1 mmHg ( 20 °C)

API family

amylmetacresol

autoignition temp.

1036 °F

expl. lim.

1.06-1.35 %, 150 °F

manufacturer/tradename

USP

refractive index

n20/D 1.541 (lit.)

bp

203 °C (lit.)

mp

8-10 °C (lit.)

density

1.034 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

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Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Application

It is intended to be used as a USP reference standard in specified quality tests and assays.
Also used to prepare the standard solution in the assay and organic impurity analysis using gas chromatography-flame ionization detector (GC-FID) according to the United States Pharmacopeia (USP) monograph.

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets, has been developed and issued under the Authority of the issuing Pharmacopoeia.

For further information and support please go to the website of the issuing Pharmacopoeia.

Other Notes

Sales restrictions may apply.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 2

flash_point_f

186.8 °F - closed cup

flash_point_c

86 °C - closed cup

Regulatory Information

危险化学品
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Metacresol
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 38(3), 2811-2811 (2020)

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