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Merck
CN

84679

Naphthalene

analytical standard

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About This Item

Empirical Formula (Hill Notation):
C10H8
CAS Number:
91-20-3
Molecular Weight:
128.17
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
329769306
EC Number:
202-049-5
Beilstein/REAXYS Number:
1421310
MDL number:
MFCD00001742

Key Documents

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Product Name

Naphthalene, analytical standard

InChI key

UFWIBTONFRDIAS-UHFFFAOYSA-N

InChI

1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H

SMILES string

c1ccc2ccccc2c1

grade

analytical standard

vapor density

4.4 (vs air)

vapor pressure

0.03 mmHg ( 25 °C)

assay

≥99.7% (GC)

autoignition temp.

978 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

5.9 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

bp

218 °C (lit.)

mp

79.5-81.0 °C
80-82 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

format

neat

Quality Level

100

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Application

Naphthalene is used as a calibration standard for the real-time quantification with high specificity for naphthalene vapor and other HOVs in industrial environment using NaDos personal exposure monitor (PEM) device.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

Naphthalene is widely used as an intermediate in the chemical and plastics industry. It is commonly found in petroleum, coal, mothballs, cigarette smoke, biomass burning, incomplete combustion, etc.

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2

Storage Class

4.1B - Flammable solid hazardous materials

wgk

WGK 3

flash_point_f

173.3 °F - closed cup

flash_point_c

78.5 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCN9358
BCCL3229
BCCM0134
BCCH0420
BCCJ5035

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Naphthalene DNA adduct formation and tolerance in the lung
Buchholz AB, et al.
Nucl. Instrum. Methods Phys. Res. Sect. B, 438, 119-123 (2019)
NaDos: A real-time, wearable, personal exposure monitor for hazardous organic vapors
Reid M, et al.
Sensors and Actuators B, Chemical, 255, 2996-3003 (2018)
Determination of naphthalene metabolites in human urine by liquid chromatography?mass spectrometry with electrospray ionization
Andreoli R, et al.
Journal of Chromatography A, 847(1-2), 9-17 (1999)
Qiaozhen Liu et al.
Nature genetics, 51(4), 728-738 (2019-02-20)
Characterizing the stem cells responsible for lung repair and regeneration is important for the treatment of pulmonary diseases. Recently, a unique cell population located at the bronchioalveolar-duct junctions has been proposed to comprise endogenous stem cells for lung regeneration. However
P Rajamalli et al.
Langmuir : the ACS journal of surfaces and colloids, 29(5), 1609-1617 (2013-01-10)
Novel poly(aryl ether) dendron-based low-molecular-weight organogelaters (LMWG) containing naphthalene units at the core have been synthesized, and the self-assembly of the system has been examined in a variety of solvents and solvent mixtures. The compounds readily form gels with attractive
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