Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: J 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: 87-02-5 J acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: J acid
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

87-02-5

87-02-5 structure

Name: J acid
Chemical Name: 7-amino-4-hydroxy-2-naphthalenesulfonic acid
CAS Number: 87-02-5
Molecular Formula: C₁₀H₉NO₄S
Molecular Weight: 239.24800
Catalog: Organic raw materials Amino compound Oxy-containing amino compound
Create Date: 2018-08-21 07:22:37
Modify Date: 2026-06-30 11:38:07

Name	7-amino-4-hydroxy-2-naphthalenesulfonic acid
Synonyms	5 J acid 7-Amino-4-hydroxy-2-naphthalenesulfonic acid 7-Amino-4-naphthol-2-sulfonicacid Iso-γ acid 2-AMINO-5-HYDROXYNAPHTHALENE-7-SULFONIC ACID 7-amino-4-hydroxynaphthalene-2-sulphonic acid kyselina6-amino-1-naftol-3-sulfonova 7-AMINO-4-HYDROXYL-2-NAPHTHALENE-SULPHONICACID kyselinai 7-amino-4-hydroxynaphthalene-2-sulfonic acid 6-amino-1-naphthol-3-sulfonicacid(-7) 2-Amino-5-Naphthol-7-Sulfonic Acid2-Amino-5-Naphthol-7-Sulfonic Acid 4-Hydroxy-7-amino-2-naphthalenesulfonic acid 6-Amino-1-naphthol-3-sulfonic Acid Hydrate 6-Amino-1-hydroxy-3-naphthalenesulfonic acid J acid/3-Amino-8-Naphthol-6-Sulfonic acid 6-AMINO-1-NAPHTHOL-3-SULFONIC ACID 7-azanyl-4-hydroxy-naphthalene-2-sulfonic acid 7-amino-4-hydroxy-2-naphthalenesul 7-AMINO-4-HYDROXYNAPHTHALENE-2-SULFONIC ACID 7-Amino-4-hydroxynaphtalene-2-sulfonicacid MFCD00003970 1-Hydroxy-6-amino-3-naphthalenesulfonic acid J acid 7-Amino-4-naphthol-2-sulfonicacid aminonaphthol isogammaacid AMINONAPHTHOL SULFONIC ACID J kyselina2-amino-5-naftol-7-sulfonova 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy AMINO-NAPHTHOL SULFONIC ACID I-ACID 7-amino-4-hydroxy-2-naphthalenesulfonicaci 7-amino-4-hydroxy-2-naphthalene sulphonic acid EINECS 201-718-9 6-Amino-1-naphthol-3-sulfonic Acid Hydrate> 2-AMINO-5-NAPHTHOL-7-SULPHONICACID J acid ISO 9001：2015 REACH 2-AMINO-5-NAPHTHOL-7-SULFONIC ACID J ACID 7-Amino-4-hydroxy-2-naphthalenesulfonic Acid J Acid 6-AMINO-1-HYDROXY-3-SULFONAPHTHALENE 7-Amino-4-hydroxy-2-naphthalinsulfonsure 6-Amino-1-naphthol-3-sulfonic acid, I-Acid 7-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID

Density	1.627 g/cm3
Molecular Formula	C₁₀H₉NO₄S
Molecular Weight	239.24800
Exact Mass	239.02500
PSA	109.00000
LogP	3.03630
Index of Refraction	1.748

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QK1295500

CHEMICAL NAME :: 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-

CAS REGISTRY NUMBER :: 87-02-5

BEILSTEIN REFERENCE NO. :: 2217192

LAST UPDATED :: 199710

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C10-H9-N-O4-S

MOLECULAR WEIGHT :: 239.26

WISWESSER LINE NOTATION :: L66J BQ DSWQ HZ

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 :: 11500 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 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4717 No. of Facilities: 25 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 737 (estimated)

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-S36/37/39
RIDADR	UN 2585 8/PG 3
WGK Germany	1
RTECS	QK1295500
Packaging Group	III
Hazard Class	8
HS Code	2922210000

118-33-2

87-02-5

Literature: DE75469 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 3, p. 690

86-66-8

87-02-5

Literature: Przemysl Chemiczny, , vol. 26, p. 293,295 Chem.Abstr., , p. 547

Precursor 2
118-33-2 86-66-8
DownStream 10
6334-97-0 87-03-6 134-47-4 119-40-4
13617-83-9 23894-12-4 71550-28-2 103989-28-2
6259-56-9 6259-71-8

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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2694729-12-7	2694729-14-9
2694729-17-2	2694729-19-4
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2680683-19-4	2680817-17-6