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5-Amino-1-naphthalenesulfonic acid

5-Amino-1-naphthalenesulfonic acid Structure
CAS No.
84-89-9
Chemical Name:
5-Amino-1-naphthalenesulfonic acid
Synonyms
laurentacid;Laurens Acid;LAURENTS ACID;LAURENT'S ACID;1,5-AMINO ACID;LABOTEST-BB LT01138428;5-SULFO-1-NAPHTHYLAMINE;1-AMINO-5-SULFONAPHTHALENE;Laurent Acid(1.5 cleves acid);1-NAPHTHYLAMINE-5-SULFONIC ACID
CBNumber:
CB7713334
Molecular Formula:
C10H9NO3S
Molecular Weight:
223.25
MOL File:
84-89-9.mol
MSDS File:
SDS
Modify Date:
2023/11/2 15:18:00

5-Amino-1-naphthalenesulfonic acid Properties

Melting point >300°C
Boiling point 220°C (rough estimate)
Density 1.3588 (rough estimate)
refractive index 1.6500 (estimate)
solubility Aqueous Base (Slightly), DMSO (Slightly)
pka pK1: 3.69 (25°C)
form powder to crystal
color Purple to Dark purple to Dark red
Water Solubility Soluble in hot water.
Merck 14,6404
BRN 2214149
CAS DataBase Reference 84-89-9(CAS DataBase Reference)
EPA Substance Registry System 1-Naphthalenesulfonic acid, 5-amino- (84-89-9)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H335-H312-H314-H332-H315-H319
Precautionary statements  P280g-P264-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P280-P305+P351+P338-P310
Hazard Codes  C
Risk Statements  20/21/22-34
Safety Statements  26-36/37/39-45
RIDADR  UN 2585 8/PG 3
WGK Germany  3
RTECS  QK1270500
TSCA  Yes
HS Code  2921.45.2000
HazardClass  8
PackingGroup  III
NFPA 704
0
1 0

5-Amino-1-naphthalenesulfonic acid price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ALFA India ALF-A11433-22 5-Aminonaphthalene-1-sulfonic acid, tech. 90% 84-89-9 100g ₹3663 2022-05-26 Buy
ALFA India ALF-A11433-18 5-Aminonaphthalene-1-sulfonic acid, tech. 90% 84-89-9 50g ₹1984 2022-05-26 Buy
ALFA India ALF-A11433-14 5-Aminonaphthalene-1-sulfonic acid, tech. 90% 84-89-9 25g ₹2096 2022-05-26 Buy
TCI Chemicals (India) A0345 5-Amino-1-naphthalenesulfonic Acid 84-89-9 25G ₹10500 2022-05-26 Buy
SRL 91085 5-Aminonaphthalene-1-Sulphonic Acid pure, 90% 84-89-9 25Gms ₹2630 2022-05-26 Buy
Product number Packaging Price Buy
ALF-A11433-22 100g ₹3663 Buy
ALF-A11433-18 50g ₹1984 Buy
ALF-A11433-14 25g ₹2096 Buy
A0345 25G ₹10500 Buy
91085 25Gms ₹2630 Buy

5-Amino-1-naphthalenesulfonic acid Chemical Properties,Uses,Production

Chemical Properties

?1-Aminonaphthalene-5-sulfonic acid [84- 89-9]. (5-aminonaphthalene-1-sulfonic acid), Laurent’s acid, L acid, Purpurin acid, C10H9NO3S, Mr 223.24, crystallizes from hot water as needles of the monohydrate. The alkalimetal salts are all readily soluble in water. Bromination yields the 2,4-dibromo derivative, vigorous nitration gives 2,4-dinitro-1- hydroxynaphthalene, and sulfonation results in 1-aminonaphthalene-2,5,7-trisulfonic acid. 1- Hydroxynaphthalene-5-sulfonic acid is obtained by heating 104 with aqueous bisulfite (reverseBucherer reaction) or via the diazo compound. Caustic fusion produces 5-amino-1-hydroxynaphthalene. Coupling with diazo compounds takes place in the 2-position.

Uses

Intermediate of dyestuff

Production Methods

Laurent’s acid is coproduced with Peri acid as the minor component of a 5:2 isolated product ratio.

Purification Methods

Crystallise the acid under nitrogen from boiling water and dry it in a steam oven [Bryson Trans Faraday Soc 47 522, 527 1951]. [Beilstein 14 IV 2800.]

Global( 244)Suppliers
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TCI Chemicals (India) Pvt. Ltd. 1800 425 7889 New Delhi, India 6778 58 Inquiry
Sisco Research Laboratories Pvt. Ltd. +91-22-4268 5800 Mumbai, India 4317 58 Inquiry
Alfa Aesar 1 800 209 7001 Maharashtra, India 6913 58 Inquiry
Triveni chemicals 08048762458 New Delhi, India 6093 58 Inquiry
Dhara Chemicals 08048361282Ext 160 Ahmedabad, India 17 58 Inquiry
Multihue Chemicals India Private Limited 08048372372Ext 631 Mumbai, India 33 58 Inquiry
H. Ramesh Kumar 91-22-23444365 Maharashtra, India 117 58 Inquiry
Emco Dyestuff Pvt. Ltd. +91 (22) 894 35 21 / 894 49 06 New Delhi, India 189 54 Inquiry
Amines Biotech Private Limited 08048974617 Vadodara, India 104 58 Inquiry
Rumit International (part of Rumit Group of Companies) 91-22-61418100 Maharashtra, India 75 58 Inquiry
5-amino-1-naphthalenesulfonicaci 1-NAPHTHYLAMINE-5-SULFONICACID(LAURENT''SACID) Laurens Acid Laurents acid~1-Naphthylamine-5-sulphonic acid 1-Amino-5-naphthalenesulfonic acid 1-Aminonaphtalene-5-sulfonic acid, 97%+ 5-Aminonaphthalene-1-sulfonic acid, tech. 90% Laurent's Acid 1-Naphthylamine-5-sulfonic Acid Laurent Acid(1.5 cleves acid) laurentacid 5-AMINO-1-NAPHTHALENESULFONIC ACID 5-AMINONAPHTHALENE-1-SULFONIC ACID 5-AMINONAPHTHALENE-1-SULPHONIC ACID LABOTEST-BB LT01138428 LAURENTS ACID LAURENT'S ACID 1-NAPHTHYLAMINE-5-SULFONIC ACID 1,5-AMINO ACID 1-AMINONAPHTHALENE-5-SULFONIC ACID 1-AMINO-5-SULFONAPHTHALENE 5-SULFO-1-NAPHTHYLAMINE 1-aminonaphtalene-5-sulfonicacid 5-AMino-1-naphthalenesulfonic Acid , 98.0%(T) 5-AMino-1-naphthalenesulfonic acid technical, >=90% (T) 1-Naphthalenesulfonic acid, 5-amino- 5-Amino-1-naphthalenesulfonic Acid > 5-Aminonaphthalene-1-sulfonicaci 5-Amino-1-naphthalenesulfonic acid ISO 9001:2015 REACH 5-Aminonaphthalene-1-Sulphonic Acid pure, 90% 5-Amino-1-naphthalenesulfonic Acid, ≥ 98.0% 84-89-9 84-89-2 H2NCd0H6SO3H NH2C10H6SO2H Building Blocks Organic Building Blocks Sulfonic/Sulfinic Acids Sulfur Compounds Intermediates of Dyes and Pigments