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8.22290

Sigma-Aldrich

2-Naphthol

for synthesis

Synonym(s):

2-Naphthol, 2-Hydroxy naphthaline

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About This Item

Empirical Formula (Hill Notation):
C10H8O
CAS Number:
135-19-3
Molecular Weight:
144.17
MDL number:
MFCD00004067
UNSPSC Code:
12352104
EC Index Number:
205-182-7
NACRES:
NA.22

vapor pressure

<0.1 hPa ( 30 °C)

Quality Level

200

assay

≥99% (GC)

form

solid

autoignition temp.

430 °C

potency

1960 mg/kg LD50, oral (Rat)
>10000 mg/kg LD50, skin (Rabbit)

bp

294.8 °C/1013 hPa

mp

121.6 °C

transition temp

flash point 153 °C

solubility

1 g/L

density

1.27 g/cm3 at 20 °C

bulk density

300 kg/m3

storage temp.

2-30°C

InChI

1S/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H

InChI key

JWAZRIHNYRIHIV-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 119 °C
Melting range (upper value): ≤ 122 °C
Identity (IR): passes test

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Dam. 1 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

307.4 °F - closed cup

flash_point_c

153 °C - closed cup

Certificates of Analysis (COA)

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