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

Modify Date: 2025-08-20 19:23:34

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

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

 Chemical & Physical Properties

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

 Toxicological Information

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

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

7-Amino-1,3-naphthalenedisulfonic acid structure

7-Amino-1,3-nap...

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~%

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

6-Amino-4-hydro...

CAS#:90-51-7

Literature: Grundlegende Operationen der Farbenchemie, 5. Aufl. , S. 195, 197, 199
4,6-Dihydroxynaphthalene-2-sulphonic acid structure

4,6-Dihydroxyna...

CAS#:6357-93-3

~%

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

6-Amino-4-hydro...

CAS#:90-51-7

Literature: Journal fuer Praktische Chemie (Leipzig), , vol. <2> 69, p. 73 Journal fuer Praktische Chemie (Leipzig), , vol. <2> 70, p. 349
3,5-dihydroxy-7-sulfo-2-naphthoic acid structure

3,5-dihydroxy-7...

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Ammonia structure

Ammonia

CAS#:7664-41-7

~%

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

6-Amino-4-hydro...

CAS#:90-51-7

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

 Customs

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

2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-
6-Amino-4-hydroxy-2-naphthalenesulfonic acid
EINECS 202-000-8
6-amino-4-hydroxynaphthalene-2-sulfonic acid
MFCD00003973
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Chemsrc provides CAS#:90-51-7 MSDS, density, melting point, boiling point, structure, etc. Its name is 6-Amino-4-hydroxy-2-naphthalenesulfonic acid>> amp version: 6-Amino-4-hydroxy-2-naphthalenesulfonic acid

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