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2-Naphthol

Name: 2-Naphthol
Brand: MM

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

UNSPSC Code:

12352104

EC Index Number:

205-182-7

NACRES:

NA.22

MDL number:

MFCD00004067

Assay:

≥99% (GC)

Form:

solid

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Properties

vapor pressure

<0.1 hPa ( 30 °C)

Quality Segment

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

SMILES string

Oc1cc2c(cc1)cccc2

InChI

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

InChI key

JWAZRIHNYRIHIV-UHFFFAOYSA-N

Description

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

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This Item	130109	185507	820869
Sigma-Aldrich 822290 2-Naphthol	Sigma-Aldrich 130109 2-Naphthol	Sigma-Aldrich 185507 2-Naphthol	Sigma-Aldrich 820869 2-Naphthyl phenyl ketone
description for synthesis	description 98%	description 99%	description for synthesis
assay ≥99% (GC)	assay 98%	assay 99%	assay ≥98.0% (HPLC)
Quality Level 200	Quality Level 100	Quality Level 200	Quality Level 200
solubility 1 g/L	solubility -	solubility methanol: soluble 1 g/10 mL, clear, colorless to light yellow	solubility -
storage temp. 2-30°C	storage temp. -	storage temp. -	storage temp. 2-30°C
density 1.27 g/cm³ at 20 °C	density -	density -	density -
form solid	form powder or flakes	form powder or flakes	form powder

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pictograms

GHS05,GHS07,GHS09

signalword

Danger

hcodes

H302 + H332,H317,H318,H400

pcodes

P273 - P280 - P301 + P312 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338

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

WGK 2

flash_point_f

307.4 °F - closed cup

flash_point_c

153 °C - closed cup

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