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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
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

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J acid Suppliers

Xiangshui Henryda Tech Chemical Co., Ltd.
Tel
13771648447
Fax
+86-512-69233657
Email
sales@henryda-chem.com
Country
China
ProdList
61
Advantage
58
Wuhan penglei Biotechnology Co., Ltd
Tel
15871464247
Email
1545569349@QQ.COM
Country
China
ProdList
709
Advantage
58
Dao Kui Chemical (Shanghai) Co. LTD
Tel
15995509766
Email
296549925@qq.com
Country
China
ProdList
126
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42982
Advantage
64
XiaoGan ShenYuan ChemPharm co,ltd
Tel
0712-0712-2580635 15527768850
Email
1791901229@qq.com
Country
China
ProdList
8850
Advantage
52
Syntechem Co.,Ltd
Tel
Fax
E-Mail Inquiry
Email
info@syntechem.com
Country
China
ProdList
12990
Advantage
57
RYSS TECH LTD
Tel
400-188-0725 +86 21 34310725 13611771617
Fax
+86 21 34311076
Country
China
ProdList
2002
Advantage
57
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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 Mojin Biotechnology Co., Ltd
Product
J acid 87-02-5
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000tons
Release date
2023-08-14
Hebei Guanlang 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
2023-03-28

87-02-5, J acidRelated Search:


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