J acid

Product Name: J acid
CAS No.: 87-02-5
Chemical Name: J acid
Synonyms: 6-Amino-1-naphthol-3-sulfonic Acid Hydrate;I-ACID;J ACID;kyselinai;Iso-γ acid;isogammaacid;aminonaphthol;87-02-5 J acid;J acid ISO 9001：2015 REACH;AMINO-NAPHTHOL SULFONIC ACID
CBNumber: CB5264771
Molecular Formula: C10H9NO4S
Formula Weight: 239.25
MOL File: 87-02-5.mol

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J acid Property

Density: 1.4338 (rough estimate)
vapor pressure: 0Pa at 25℃
refractive index: 1.6500 (estimate)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
solubility: Slightly soluble in water
pka: -0.28±0.40(Predicted)
form: powder
color: yellow
Water Solubility: 5g/L at 20℃
InChIKey: KYARBIJYVGJZLB-UHFFFAOYSA-N
LogP: -1.39
CAS DataBase Reference: 87-02-5(CAS DataBase Reference)
EPA Substance Registry System: 7-Amino-4-hydroxy-2-naphthalenesulfonic acid (87-02-5)

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Safety

Hazard Codes: C
Risk Statements: 34
Safety Statements: 26-27-36/37/39
RIDADR: UN 2585 8/PG 3
WGK Germany: 1
RTECS: QK1295500
F: 21
HazardClass: 8
PackingGroup: III
HS Code: 2922190090
Toxicity: LD50 oral in rat: 11500mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H320Causes eye irritation

H341Suspected of causing genetic defects

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 08800
Product name: 7-Amino-4-hydroxy-2-naphthalenesulfonic acid
Purity: technical, ≥90% (T)
Packaging: 100G
Price: $102.6
Updated: 2024/03/01

TCI Chemical

Product number: A0370
Product name: 6-Amino-1-naphthol-3-sulfonic Acid Hydrate
Purity: >95.0%(HPLC)(T)
Packaging: 25g
Price: $30
Updated: 2024/03/01

TCI Chemical

Product number: A0370
Product name: 6-Amino-1-naphthol-3-sulfonic Acid Hydrate
Purity: >95.0%(HPLC)(T)
Packaging: 500g
Price: $231
Updated: 2024/03/01

Usbiological

Product number: 415295
Product name: 2-Amino-5-naphthol-7-sulfonic Acid
Packaging: 5g
Price: $305
Updated: 2021/12/16

TRC

Product number: A618693
Product name: 2-Amino-5-naphthol-7-sulfonicAcid
Packaging: 25g
Price: $70
Updated: 2021/12/16

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J acid Chemical Properties,Usage,Production

Chemical Properties

Gray needles, white when pure. Soluble in hot water; sparingly soluble in cold water. 2-Amino-5-hydroxynaphthalene-7-sulfonic acid [87-02-5]. (7-amino-4-hydroxynaphthalene-2-sulfonic acid), J acid, C10H9NO4S, Mr 239.2, is only slightly soluble (0.1 %) in cold water but readily soluble at 100℃. The alkalimetal salts are readily soluble in water. Diazo compounds are normally coupled with J acid under alkaline conditions with reaction in the 6-position (ortho to hydroxyl); however, under acid conditions, coupling can occur in the 1- position. Reaction with bisulfite gives 4,7-dihydroxynaphthalene-2-sulfonic acid. The N-acylation, Nalkylation, and N-arylation reactions are important.

Uses

Azo dye intermediate.

Production Methods

A concentrated disodium salt solution of 2-aminonaphthalene-5,7-disulfonic acid is added to 72 % sodium hydroxide at 150 ℃. After heating to 187℃ over 10 h reaction is continued at this temperature for a further 8 h until completion of the reaction is indicated by giving equivalent diazotization and coupling titers for a worked-up sample. Quenching, acidification, purging of sulfur dioxide, and filtration at 55 ℃ followed by washing with water at 50℃ result in an 88 % yield of paste. Purification by salting out the sodium salt from a hot alkaline solution gives a 90 % recovery of the product as gray crystals. An improved process with 90 % yield is claimed by feeding the concentrated 2-aminonaphthalene-5,7-disulfonic acid liquor and the caustic liquor simultaneously into the fusion reactor to maintain more stable conditions.

Definition

ChEBI: 7-amino-4-hydroxy-2-naphthalenesulfonic acid is an aminonaphthalenesulfonic acid that is 2-naphthalenesulfonic acid substituted by an amino group at position 7 and a hydroxy group at position 4 respectively. It has a role as a metabolite. It is an aminonaphthalenesulfonic acid and a member of naphthols.

Flammability and Explosibility

Not classified

J acid Preparation Products And Raw materials

Raw materials

FUMING SULFURIC ACID 2-Aminonaphthalene-1-sulfonic acid 2-Naphthylamine NAPHTHENIC ACID Sodium hydroxide

Preparation Products

disodium 3-[[4'-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-1-sulphonate 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Reactive Orange 5 7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid Reactive Orange 1 Direct Red 31

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J acid Suppliers

Americas 1 Belgium 1 China 241 Czech Republic 1 Europe 3 Germany 6 India 68 Japan 7 Malaysia 1 South Korea 3 Switzerland 1 The Netherlands 1 United Kingdom 11 United States 29 Global 374

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View Lastest Price from J acid manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD

Product: J acid 87-02-5
Price: US $1.00/KG
Min. Order: 1KG
Purity: 97%
Supply Ability: 1000KG/month
Release date: 2021-06-16

Hebei Weibang Biotechnology Co., Ltd

Product: J acid 87-02-5
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-11-18

Hebei Chuanghai Biotechnology Co,.LTD

Product: J acid 87-02-5
Price: US $11.60/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 5000kg
Release date: 2024-08-21

87-02-5, J acidRelated Search:

5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid CHLOROPHOSPHONAZO III Glycine Folic acid 4-Amino-benzenesulfonic acid monosodium salt Sulfamic acid monosodium salt Ammonium sulfamate Citric acid Ethyl 2-(Chlorosulfonyl)acetate Molasses 2-Naphthol ALTRENOGEST Nickel bis(sulphamidate) Sulfamic acid Naphthalene 1-Naphthol Stearic acid 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid

7-amino-4-hydroxy-2-naphthalenesulfonicaci

kyselina6-amino-1-naftol-3-sulfonova

kyselinai

6-amino-1-naphthol-3-sulfonicacid(2-5-7)

2-AMINO-5-HYDROXYNAPHTHALENE-7-SULFONIC ACID

2-AMINO-5-NAPHTHOL-7-SULFONIC ACID

7-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID

7-amino-4-hydroxy-2-naphthalene sulphonic acid

7-AMINO-4-HYDROXYNAPHTHALENE-2-SULFONIC ACID

6-AMINO-1-NAPHTHOL-3-SULFONIC ACID

6-AMINO-1-HYDROXY-3-SULFONAPHTHALENE

AMINO-NAPHTHOL SULFONIC ACID

AMINONAPHTHOL SULFONIC ACID J

I-ACID

J ACID

6-Amino-1-hydroxy-3-naphthalenesulfonic acid

Iso-γ acid

2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-

2-AMINO-5-NAPHTHOL-7-SULPHONICACID

7-AMINO-4-HYDROXYL-2-NAPHTHALENE-SULPHONICACID

7-Amino-4-hydroxy-2-naphthalinsulfonsure

7-amino-4-hydroxynaphthalene-2-sulphonic acid

7-Amino-4-hydroxynaphtalene-2-sulfonicacid

7-Amino-4-naphthol-2-sulfonicacid

aminonaphthol

isogammaacid

6-Amino-1-naphthol-3-sulfonic Acid Hydrate

6-Amino-1-naphthol-3-sulfonic acid, I-Acid

1-Hydroxy-6-amino-3-naphthalenesulfonic acid

4-Hydroxy-7-amino-2-naphthalenesulfonic acid

kyselina2-amino-5-naftol-7-sulfonova

7-azanyl-4-hydroxy-naphthalene-2-sulfonic acid

7-Amino-4-hydroxy-2-naphthalenesulfonic Acid J Acid

6-AMino-1-naphthol-3-sulfonic Acid&nbsp

7-amino-4-hydroxy-2-naphthalenesul

6-Amino-1-naphthol-3-sulfonic Acid Hydrate&gt

J acid ISO 9001：2015 REACH

87-02-5 J acid

J acid/3-Amino-8-Naphthol-6-Sulfonic acid

2-Amino-5-Naphthol-7-Sulfonic Acid2-Amino-5-Naphthol-7-Sulfonic Acid

87-02-5

87-05-5

1987-2-5

1987-02-05

1987-02-5

Sulfur Compounds

Sulfonic/Sulfinic Acids

Organic Building Blocks

Building Blocks

Chemical Synthesis

Organic Building Blocks

Sulfonic/Sulfinic Acids

Sulfur Compounds

Azo dyes

Intermediates of Dyes and Pigments

87-02-5