33420

Sigma-Aldrich

1-Naphthol

puriss. p.a., reag. Ph. Eur., ≥99% (GC)

Synonym(s):
α-Naphthol, 1-Hydroxynaphthalene
Linear Formula:
C10H7OH
CAS Number:
Molecular Weight:
144.17
Beilstein/REAXYS Number:
1817321
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

Agency/Method

USP/NF
reag. Ph. Eur.

vapor density

4.5 (120 °C, vs air)

vapor pressure

1 mmHg ( 94 °C)

grade

puriss. p.a.

assay

≥99% (GC)

autoignition temp.

1007 °F

expl. lim.

5 %

impurities

≤0.001% heavy metals (as Pb)
≤0.2% naphthaline (GC)
≤0.2% water (Karl Fischer)
≤0.5% 2-naphthol (GC)

ign. residue

≤0.05% (as SO4)

bp

278-280 °C (lit.)

mp

94-96 °C (lit.)
94-97 °C

anion traces

chloride (Cl-): ≤50 mg/kg

cation traces

Fe: ≤10 mg/kg

SMILES string

Oc1cccc2ccccc12

InChI

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

InChI key

KJCVRFUGPWSIIH-UHFFFAOYSA-N

Gene Information

human ... CYP1A2(1544)

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Packaging

bottled under inert gas

Signal Word

Danger

hazcat

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1A - STOT SE 2 Oral - STOT SE 3

Target Organs

Kidney, Respiratory system

storage_class_code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK Germany

WGK 1

Flash Point(F)

257.0 °F - closed cup

Flash Point(C)

125 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Accurate hydrogen-bonding energies between 1-naphthol and water, methanol and ammonia.
Burgi T, et al
Chemical Physics Letters, 246(3), 291-299 (1995)
Characterization of duloxetine HCL API and its process related impurities
Karagiannidou E, et al.
International Journal of Analytical, Pharmaceutical and Biomedical Sciences, 3(2) (2014)
Baoliang Chen et al.
Chemosphere, 76(1), 127-133 (2009-03-14)
Biochars, derived from biomass, are increasingly recognized as an environmental-friendly sorbent to abate organic pollutants. Sorption variations of biochars with their pyrolytic temperatures are evaluated. Nine biochars of orange peels with different pyrolytic temperatures (150-700 degrees C, referred as OP150-OP700)...
Shitong Yang et al.
The Science of the total environment, 420, 214-221 (2012-02-15)
The increasing exploitation of multi-walled carbon nanotubes (MWCNTs) into many industrial processes has raised considerable concerns as they are likely to be released into the environment. The interactions of the pollutants in water with discharged MWNCTs will further influence the...
Xiaoying Guo et al.
Environmental science & technology, 46(13), 7252-7259 (2012-06-09)
The sorption behavior of four hydrophobic organic contaminants (HOCs) (i.e., phenanthrene, naphthalene, lindane, and 1-naphthol) by three types of polymers namely polyethylene (PE), polystyrene (PS), and polyphenyleneoxide (PPO) was examined in this work. The organic carbon content-normalized sorption coefficients (K(oc))...

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