6-Amino-4-hydroxy-2-naphthalenesulfonic acid

Modify Date: 2026-07-12 18:29:42

6-Amino-4-hydroxy-2-naphthalenesulfonic acid Structure
6-Amino-4-hydroxy-2-naphthalenesulfonic acid structure
Common Name 6-Amino-4-hydroxy-2-naphthalenesulfonic acid
CAS Number 90-51-7 Molecular Weight 239.248
Density 1.6±0.1 g/cm3 Boiling Point N/A
Molecular Formula C10H9NO4S Melting Point N/A
MSDS Chinese USA Flash Point N/A
Symbol GHS05
GHS05
Signal Word Danger

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.6±0.1 g/cm3
Molecular Formula C10H9NO4S
Molecular Weight 239.248
Exact Mass 239.025223
PSA 109.00000
LogP -1.46
Index of Refraction 1.748
InChIKey HBZVNWNSRNTWPS-UHFFFAOYSA-N
SMILES Nc1ccc2cc(S(=O)(=O)O)cc(O)c2c1

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QK1295250
CHEMICAL NAME :
2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-
CAS REGISTRY NUMBER :
90-51-7
BEILSTEIN REFERENCE NO. :
1821283
LAST UPDATED :
199712
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C10-H9-N-O4-S

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 6,59,1954

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS05
GHS05
Signal Word Danger
Hazard Statements H314
Precautionary Statements P280-P305 + P351 + P338-P310
Personal Protective Equipment Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes C:Corrosive
Risk Phrases R34
Safety Phrases S26-S27-S28-S36/37/39-S45
RIDADR UN 2585 8/PG 3
WGK Germany 1
RTECS QK1295250
HS Code 2922210000

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~%

6-Amino-4-hydroxy-2-naphthalenesulfonic acid Structure

6-Amino-4-hydro...

CAS#:90-51-7

Learn More
Literature: Grundlegende Operationen der Farbenchemie, 5. Aufl. , S. 195, 197, 199

~%

6-Amino-4-hydroxy-2-naphthalenesulfonic acid Structure

6-Amino-4-hydro...

CAS#:90-51-7

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

~%

6-Amino-4-hydroxy-2-naphthalenesulfonic acid Structure

6-Amino-4-hydro...

CAS#:90-51-7

Learn More
Literature: Journal fuer Praktische Chemie (Leipzig), , vol. <2> 75, p. 288

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2922299090
Summary 2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

6-Amino-4-hydroxy-2-naphthalenesulfonic acid
EINECS 202-000-8
6-amino-4-hydroxynaphthalene-2-sulfonic acid
MFCD00003973

  | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the polar surface area (PSA) of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: Polar surface area (PSA) of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid is 109.00000.
Q: What English synonyms does 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid have?
A: English synonyms of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid: 6-Amino-4-hydroxy-2-naphthalenesulfonic acid, EINECS 202-000-8, 6-amino-4-hydroxynaphthalene-2-sulfonic acid, MFCD00003973.
Q: What is the safety information for 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: Safety information for 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid: S26-S27-S28-S36/37/39-S45.
Q: What is the SMILES notation of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: SMILES notation of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid is Nc1ccc2cc(S(=O)(=O)O)cc(O)c2c1.
Q: What is the CAS number of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: CAS number of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid is 90-51-7.
Q: What is the InChIKey of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: InChIKey of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid is HBZVNWNSRNTWPS-UHFFFAOYSA-N.
Q: What is the English name of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: The English name of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid is 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid.
Q: What is the molecular weight of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: Molecular weight of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid is 239.248.
Q: What are the upstream materials of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: Related upstream materials(CAS) of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid: 86-65-7;6357-93-3;6470-93-5;7664-41-7.
Q: What are the downstream products of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid?
A: Related downstream products(CAS) of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid: 578-22-3;6361-41-7;575-38-2;6259-53-6;119-19-7;88439-56-9;88439-61-6;6259-50-3;6259-51-4;103989-28-2.

 factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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