4-Hydrazinobenzenesulfonic acid
- Product Name
- 4-Hydrazinobenzenesulfonic acid
- CAS No.
- 98-71-5
- Chemical Name
- 4-Hydrazinobenzenesulfonic acid
- Synonyms
- 4-Hydrazinylbenzenesulfonic acid;PHENYLHYDRAZINE-4-SULFONIC ACID;Ai3-09050;Brn 0514779;4-Hydrazinobenzen;4-HydrazinobenzenesuL;Phenylhydrazine-4-acid;p-sulfophenylhydrazine;4-sulfophenylhydrazine;4-Sulphophenylhydrazine
- CBNumber
- CB1401873
- Molecular Formula
- C6H8N2O3S
- Formula Weight
- 188.2
- MOL File
- 98-71-5.mol
4-Hydrazinobenzenesulfonic acid Property
- Melting point:
- 285°C
- Boiling point:
- 500°C (estimate)
- Density
- 1.366 (estimate)
- refractive index
- 1.6490 (estimate)
- storage temp.
- Refrigerator, Under Inert Atmosphere
- solubility
- DMSO (Slightly), Water (Slightly)
- form
- solid
- pka
- -0.66±0.50(Predicted)
- color
- Off-White to Pale Beige
- Water Solubility
- It is soluble in water.
- Sensitive
- Hygroscopic
- Merck
- 4773
- InChI
- InChI=1S/C6H8N2O3S/c7-8-5-1-3-6(4-2-5)12(9,10)11/h1-4,8H,7H2,(H,9,10,11)
- InChIKey
- IOMZCWUHFGMSEJ-UHFFFAOYSA-N
- SMILES
- C1(S(O)(=O)=O)=CC=C(NN)C=C1
- CAS DataBase Reference
- 98-71-5(CAS DataBase Reference)
- EPA Substance Registry System
- Benzenesulfonic acid, 4-hydrazino- (98-71-5)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39-60-37
- RIDADR
- 2585
- RTECS
- DB6900000
- Hazard Note
- Irritant
- TSCA
- Yes
- HS Code
- 29280000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- H1662
- Product name
- 4-Hydrazinobenzenesulfonic Acid
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 25g
- Price
- $33
- Updated
- 2025/07/31
- Product number
- H1662
- Product name
- 4-Hydrazinobenzenesulfonic Acid
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 100g
- Price
- $95
- Updated
- 2025/07/31
- Product number
- H1662
- Product name
- 4-Hydrazinobenzenesulfonic Acid
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 500g
- Price
- $291
- Updated
- 2025/07/31
- Product number
- H710120
- Product name
- 4-Hydrazinobenzenesulfonic Acid
- Packaging
- 50mg
- Price
- $50
- Updated
- 2021/12/16
- Product number
- H710120
- Product name
- 4-Hydrazinobenzenesulfonic Acid
- Packaging
- 500g
- Price
- $275
- Updated
- 2021/12/16
4-Hydrazinobenzenesulfonic acid Chemical Properties,Usage,Production
Chemical Properties
4-Hydrazinobenzenesulfonic acid forms white to light yellow crystalline powder. Its melting point is 286°C. It dissolves readily in boiling water but is only sparingly soluble in water at room temperature. It is also slightly soluble in ethanol and diethyl ether.
Uses
4-Hydrazinobenzenesulfonic Acid is used as an intermediate to manufacture pharmaceuticals, dyes and other organic synthesis. They have active applications in organic synthesis for agrochemicals, pharmaceuticals, photographic, heat stabilizers, polymerization catalysts, flame-retardants, blowing agents for plastics, explosives, and dyes.
Application
Hemihydrate of 4-Hydrazinobenzenesulfonic Acid is used in analytical experiments to determine trace components of mixtures. Also used in the synthesis of inhibitors of coxsackievirus B3 replication. Tartrazine (T007700) analog.
Preparation
Synthesis of 4-Hydrazinobenzenesulfonic acid: Sodium 4-aminobenzenesulfonate was used as the starting material. It was mixed with water and 30% hydrochloric acid, and the mixture was cooled to 2°C. A sodium nitrite solution was then added dropwise at 0–5°C to achieve diazotization. The resulting diazonium salt solution was transferred into a mixture of sodium hydroxide solution and sodium metabisulfite, maintaining the feed temperature at 80–85°C and the pH between 6.2 and 6.7. After the addition was complete, the reaction mixture was stirred for an additional 1.5 hours. Subsequently, zinc powder and diatomaceous earth were added. The mixture was stirred and then filtered. The filtered reaction product was finally treated with acid to afford 4-hydrazinobenzenesulfonic acid.
4-Hydrazinobenzenesulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-Hydrazinobenzenesulfonic acid manufacturers
- Product
- 4-Hydrazinobenzenesulfonic acid 98-71-5
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20 mt
- Release date
- 2024-12-04
- Product
- 4-Hydrazinobenzenesulfonic acid 98-71-5
- Price
- US $10.00-0.80/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-01-12
- Product
- Phenylhydrazine-4-sulfonic acid 98-71-5
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98.6%
- Supply Ability
- 100 tons
- Release date
- 2022-02-18