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133477

Sigma-Aldrich

1-Amino-2-naphthol hydrochloride

technical grade, 90%

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About This Item

Linear Formula:
H2NC10H6OH · HCl
CAS Number:
Molecular Weight:
195.65
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

grade

technical grade

assay

90%

form

crystals

mp

250 °C (dec.) (lit.)

SMILES string

Cl.Nc1c(O)ccc2ccccc12

InChI

1S/C10H9NO.ClH/c11-10-8-4-2-1-3-7(8)5-6-9(10)12;/h1-6,12H,11H2;1H

InChI key

DEKREBCFNLUULC-UHFFFAOYSA-N

General description

1-Amino-2-naphthol undergoes condensation with methylene-substituted azaheterocycles in presence of an oxidizing agent to yield photochromic spirooxazines.

Application

1-Amino-2-naphthol hydrochloride was used in a study on degradation of the azo dye Acid Orange 7 in batch anaerobic unstirred assay.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Yang Mu et al.
Environmental science & technology, 43(13), 5137-5143 (2009-08-14)
Azo dyes are ubiquitously used in the textile industry. These dyes need to be removed from the effluent prior to discharge to sewage due to their intense color and toxicity. In this study we investigated the use of a bioelectrochemical
Synthesis of photochromic spirooxazines from 1-amino-2-naphthols
Lokshin V, et al.
Tetrahedron, 53(28), 9669-9678 (1997)
Anaerobic treatment of azo dye Acid Orange 7 under batch conditions.
Mendez-Paz D, et al.
Enzyme and Microbial Technology, 36(2), 264-272 (2005)
Anita Sztojkov-Ivanov et al.
Journal of separation science, 28(18), 2505-2510 (2006-01-13)
The enantiomers of 1-(alpha-aminobenzyl)-2-naphthol and 2-(alpha-aminobenzyl)-1-naphthol analogs were separated isothermally on a cellulose-tris-3,5-dimethylphenyl carbamate-based chiral stationary phase (Chiralcel OD-H), at 10 degrees C increments in the range of 5-35 degrees C, using n-hexane/2-propanol/diethylamine as mobile phase. The mobile phase composition
D Dillon et al.
Mutagenesis, 9(4), 295-299 (1994-07-01)
D & C Red No. 9 is a monoazo dye used for manufacturing printing inks, rubber and plastics, and as an additive in cosmetics and drugs. In an NTP carcinogenicity study in rats and mice it induced splenic sarcomas and

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