Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 6-Amino-4-hydroxy-2-naphthalenesulfonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 90-51-7 6-Amino-4-hydroxy-2-naphthalenesulfonic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

90-51-7

90-51-7 structure

Name: 6-Amino-4-hydroxy-2-naphthalenesulfonic acid
Chemical Name: 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid
CAS Number: 90-51-7
Molecular Formula: C₁₀H₉NO₄S
Molecular Weight: 239.248
Catalog: Organic raw materials Amino compound Oxy-containing amino compound
Create Date: 2018-03-23 08:00:00
Modify Date: 2026-07-12 18:29:42

Name	6-Amino-4-hydroxy-2-naphthalenesulfonic Acid
Synonyms	6-AMINO-4-HYDROXY-2-NAPHTHALENE-SULPHONICACID 6-Amino-4-hydroxynaphthalin-2-sulfonsure 6-AMINO-4-NAPHTHOL-2-SULFONIC ACID 2-AMINO-8-NAPTHOL-6-SULFONIC ACID EINECS 202-000-8 2-Amino-8-naphthol-6-sulfonic acid ( gamma Acid ) c.i.developer3 6-Amino-4-hydroxy-2-naphthalenesulfonic acid ISO 9001：2015 REACH 6-azanyl-4-hydroxy-naphthalene-2-sulfonic acid 7-amino-1-naphthol-3-sulfonicaci 7 6-Amino-4-hydroxy-2-naphthalenesulfonic acid 2-Naphthalenesulfonicacid,6-amino-4-hydroxy γ acid 6-Amino-4-hydroxy-2-naphthalenesulfonic acid 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid > 2-Amino-8-phthol-6-sulfonic acid 4-Hydroxy-6-amino-2-naphthalenesulfonic acid 7-AMINO-1-NAPHTHOL-3-SULFONIC ACID 2-Amino-8-naphthol-6-sulfonic acid (γ acid) MFCD00003973 7-AMINO-1-HYDROXY-3-SULFONAPHTHALENE 2-Amino-8-hydroxynaphthalene-6-sulfonic acid aminonaphtholsulfonicacidgamma 6-Amino-4-hydroxy-2-naphthalenesulfonic acid OR 2-Amino-8-hydroxynaphthalene-6-sulfonic acid Galmine(silymine soluble) yacid 1-Hydroxy-7-amino-3-naphthalenesulfonic acid gamma Acid 2-Amino-8-naphthol-6-sulfonic Acid 7-Amino-1-naphthol-3-sulfonic Acid 6-amino-4-hydroxy-2-naphthalenesulfonicaci 6-amino-4-hydroxynaphthalene-2-sulphonic acid 6-amino-4-hydroxynaphthalene-2-sulfonic acid 6-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID (GAMMA ACID) 6-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID GAMMA ACID 2-AMINO-8-NAPHTHOL-6-SULFONIC ACID 6-Amino-4-hydroxy-2-naphthalinsulfonsure 6-Amino-4-hydroxynaphthalene-2-sulfonicacid

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

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

Symbol	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

86-65-7

90-51-7

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

6357-93-3

90-51-7

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

6470-93-5

7664-41-7

90-51-7

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

Precursor 4
86-65-7 6357-93-3 6470-93-5 7664-41-7
DownStream 10
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

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%

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