Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Aminonaphthalene-1-sulfonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

81-16-3

81-16-3 structure

Name: 2-Aminonaphthalene-1-sulfonic acid
Chemical Name: 2-Naphthylamine-1-Sulfonic Acid
CAS Number: 81-16-3
Molecular Formula: C₁₀H₉NO₃S
Molecular Weight: 223.248
Catalog: Organic raw materials Carboxylic compounds and derivatives Halogenation, sulfonation, nitration or nitrosation of carboxylic acids
Create Date: 2018-05-20 08:00:00
Modify Date: 2026-07-01 16:55:44

Name	2-Naphthylamine-1-Sulfonic Acid
Synonyms	TOBIAC ACID 2-Naphthylamine-1-SulfonicAci 2-amino-1-naphthalenesulfonicaci 2-Aminonaphthalene-1-sulfonic acid ISO 9001：2015 REACH TOBIAS ACI Nsc5523 2-Aminonaphthalin-1-sulfonsaure 2-Naphthylamin-1-sulfonsure Kyselina 2-naftylamin-1-sulfonova 2-NAPHTHYLAMINE-1-SULFONIC ACID (TOBIAS ACID) Tourette's acid 2-Amino-1-naphthalenesulfonic Acid TOBIAS ACID 97 PCT kyselina2-naftylamin-1-sulfonova(czech) NaphthylaMine-1-sulfonic 2 NAPHTHYLAMINE SULPHONIC ACID Tobias acid:2-Naphthylamine-1-sulfonic acid:Tobias acid 2-Amino-1-naphthalenesulfonic Acid > TOBIAS ACID 2-Amino-1-naphthalenesulfonic acid (Assay) 1-Naphthalenesulfonicacid,2-amino 2-AMINONAPHTHALENE-1-SULFONIC ACID 2-amino-aphthalene-sulfonic acid kyselinatobiasova EINECS 201-331-5 TobiasAcid(2-Amino-1-naphthalenesulfonicacid)（Assumed） SUPER J ACID MFCD00003988 2-aminonaphthalene-1-sulphonic acid 2-Naphtylamine-1-Sulfonic Acid Kyselina tobiasova kyselina2-naftylamin-1-sulfonova Tobias acid C10H8NO3S 2-Naphthylamine-1-sulfonic acid (Tobias acid) Refined Tochic Acid 2-Naphthylamine-1-sulphonic acid Wln: L66J bswq cz Naphthalenesulfonic acid, 2-amino 2-amino-1-naphthalenesulfonate 2-Amino-naphthalene-1-sulfonic acid kyselinatobiasova(czech) 2-amino-1-naphthalenesulfonic 1-Sulfo-2-naphthylamine 2-Amino-1-naphthalenesulfonicacid(Tobiasacid) 1-Naphthalenesulfonic acid, 2-amino 2-Amino-1-naphthalenesulfonic acid 2-NAPHTHYLAMINE-1-SULFONIC ACID BETA-NAPHTHYLAMINE-1-SULFONIC ACID 2-AMINO-1-NAPHTHALENESULPHONICACID Tobiasacid

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

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

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

110-91-8

90-20-0

112291-51-7

81-16-3

Literature: US5239063 A1, ;

567-47-5

81-16-3

Literature: Journal fuer Praktische Chemie (Leipzig), , vol. <2>70, p. 347 Journal fuer Praktische Chemie (Leipzig), , vol. <2>69, p. 80 Journal fuer Praktische Chemie (Leipzig), , vol. <2> 69, p. 73 Journal fuer Praktische Chemie (Leipzig), , vol. <2> 70, p. 349

91-59-8

81-16-3

Literature: DE392460 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 14, p. 405

567-47-5

7664-41-7

81-16-3

Precursor 6
110-91-8 90-20-0 112291-51-7 567-47-5
91-59-8 7664-41-7
DownStream 10
580-13-2 93-00-5 494-44-0 86-60-2
81-05-0 91-60-1 205-25-4 118-33-2
86-65-7 575-44-0

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%

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

2171221-42-2	2228438-04-6
2171636-86-3	2171430-15-0
2171448-10-3	2171441-92-0
2227643-52-7	2172598-14-8
2228296-54-4	2227909-20-6