5-Amino-1-naphthalenesulfonic acid
![5-Amino-1-naphthalenesulfonic acid Structure](CAS/GIF/84-89-9.gif)
- 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
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 |
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---|---|---|---|---|---|---|---|---|---|---|
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 |
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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 |
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.]
5-Amino-1-naphthalenesulfonic acid Preparation Products And Raw materials
Raw materials
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chevron_rightSupplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
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 |
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