5-Amino-1-naphthalenesulfonic acid
- Product Name
- 5-Amino-1-naphthalenesulfonic acid
- 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
- Formula Weight
- 223.25
- MOL File
- 84-89-9.mol
5-Amino-1-naphthalenesulfonic acid Property
- 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
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
N-Bromosuccinimide Price
- Product number
- A0345
- Product name
- 5-Amino-1-naphthalenesulfonic Acid
- Purity
- >98.0%(T)
- Packaging
- 25g
- Price
- $141
- Updated
- 2024/03/01
- Product number
- A11433
- Product name
- 5-Aminonaphthalene-1-sulfonic acid, tech. 90%
- Packaging
- 25g
- Price
- $36.65
- Updated
- 2024/03/01
- Product number
- A11433
- Product name
- 5-Aminonaphthalene-1-sulfonic acid, tech. 90%
- Packaging
- 50g
- Price
- $69.1
- Updated
- 2023/06/20
- Product number
- A11433
- Product name
- 5-Aminonaphthalene-1-sulfonic acid, tech. 90%
- Packaging
- 100g
- Price
- $120.65
- Updated
- 2024/03/01
- Product number
- FA106398
- Product name
- 5-Aminonaphthalene-1-sulfonic acid
- Packaging
- 100g
- Price
- $600
- Updated
- 2021/12/16
5-Amino-1-naphthalenesulfonic acid Chemical Properties,Usage,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
Uses
5-Aminonaphthalene-1-sulfonic acid is an deriva- tizing agents in the precolumn derivatization of some chiral phenoxy acid. Cu(II) based on a dansyl derivative was synthesized with 29.2% overall yield by a seven-step synthetic procedure from the readily available starting material 5-aminonaphthalene-1-sulfonic acid.
Definition
ChEBI: 5-Amino-1-naphthalenesulfonic acid is a naphthalenesulfonic acid.
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
Preparation Products
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View Lastest Price from 5-Amino-1-naphthalenesulfonic acid manufacturers
- Product
- 5-Amino-1-naphthalenesulfonic acid 84-89-9
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-01-13
- Product
- 5-Amino-1-naphthalenesulfonic acid 84-89-9
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-11-06
- Product
- 5-Amino-1-naphthalenesulfonic acid 84-89-9
- Price
- US $50.00/kg
- Min. Order
- 1kg
- Purity
- 99.9%
- Supply Ability
- 10000MT
- Release date
- 2023-08-08