2-Aminonaphthalene-1-sulfonic acid

Names

[ CAS No. ]:
81-16-3

[ Name ]:
2-Aminonaphthalene-1-sulfonic acid

[Synonym ]:
Tobias acid
MFCD00003988
2-Naphthylamine-1-sulfonic acid (Tobias acid)
2-Naphthylamine-1-sulphonic acid
EINECS 201-331-5
1-Naphthalenesulfonic acid, 2-amino-
2-Amino-1-naphthalenesulfonic acid
2-Aminonaphthalene-1-sulfonic acid
2-Amino-naphthalene-1-sulfonic acid

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Melting Point ]:
180ºC

[ Molecular Formula ]:
C₁₀H₉NO₃S

[ Molecular Weight ]:
223.248

[ Exact Mass ]:
223.030319

[ PSA ]:
88.77000

[ LogP ]:
1.32

[ Index of Refraction ]:
1.713

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QK1250000

CHEMICAL NAME :: 1-Naphthalenesulfonic acid, 2-amino-

CAS REGISTRY NUMBER :: 81-16-3

BEILSTEIN REFERENCE NO. :: 0613084

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C10-H9-N-O3-S

MOLECULAR WEIGHT :: 223.26

WISWESSER LINE NOTATION :: L66J BSWQ CZ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1057,1986 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 19400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1057,1986

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38;R40

[ Safety Phrases ]:
S26-S36/37/39

[ RIDADR ]:
2585

[ WGK Germany ]:
1

[ RTECS ]:
QK1250000

[ Packaging Group ]:
III

[ Hazard Class ]:
8

[ HS Code ]:
2921450090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2921450090

[ Summary ]:
2921450090 1-naphthylamine (α-naphthylamine), 2-naphthylamine (β-naphthylamine) and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Articles

Reversed-phase liquid chromatographic determination of two manufacturing intermediates in D&C Red No. 34 and its lakes.

J. AOAC Int. 92(6) , 1639-43, (2009)

A reversed-phase LC method was developed to determine two manufacturing intermediates in the monosulfo monoazo color additive D&C Red No. 34 and its lakes. The analytes are 2-amino-1-naphthalenesulfon...

Reaction of 2-chlorobenzoxazole with anthranilic acids and 2-amino-1-naphthalenesulfonic acid.

J. Pharm. Sci. 57(8) , 1445-6, (1968)

Inclusion complex of 2-naphthylamine-6-sulfonate with beta-cyclodextrin: intramolecular charge transfer versus hydrogen bonding effects.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 66(4-5) , 1228-36, (2007)

The photophysical characteristics of the ground and excited states of 2-naphthylamine-6-sulfonate (2-NA-6-S) were investigated in different solvents and in beta-cyclodextrin (beta-CD). The spectral sh...