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CAS

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2369-25-7

4-amino-3-fluorobenzenesulfonic acid is an organic compound characterized by its chemical formula C6H6FNO3S. It features a benzene ring with an amino group at the 4-position, a fluorine atom at the 3-position, and a sulfonic acid group attached to the benzene ring. 4-amino-3-fluorobenzenesulfonic acid is known for its acidic properties due to the presence of the sulfonic acid group, which can ionize in water to release hydrogen ions. It is a white crystalline solid and is used in the synthesis of various pharmaceuticals and chemical intermediates. The fluorine atom in the molecule can influence its reactivity and stability, making it a potentially valuable building block in the development of new drugs and materials.

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  • 2369-25-7 Structure

  • Basic information

    1. Product Name: 4-amino-3-fluorobenzenesulfonic acid
    2. Synonyms: 4-amino-3-fluorobenzenesulfonic acid
    3. CAS NO:2369-25-7
    4. Molecular Formula:
    5. Molecular Weight: 191.183
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 2369-25-7.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 4-amino-3-fluorobenzenesulfonic acid(CAS DataBase Reference)
    10. NIST Chemistry Reference: 4-amino-3-fluorobenzenesulfonic acid(2369-25-7)
    11. EPA Substance Registry System: 4-amino-3-fluorobenzenesulfonic acid(2369-25-7)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 2369-25-7(Hazardous Substances Data)

2369-25-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2369-25-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,6 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2369-25:
(6*2)+(5*3)+(4*6)+(3*9)+(2*2)+(1*5)=87
87 % 10 = 7
So 2369-25-7 is a valid CAS Registry Number.

2369-25-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-amino-3-fluorobenzenesulfonic acid

1.2 Other means of identification

Product number -
Other names 2-fluoro-4-sulphoaniline

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2369-25-7 SDS

2369-25-7Relevant articles and documents

Benzenesulfonamide-derivatives and their use as medicaments

-

Page column 71, (2010/11/30)

Compounds of formula (I), pharmaceutically acceptable salts or in vivo hydrolysable esters thereof, wherein: Ring X is phenyl or a six membered heteroaryl ring containing one or two ring nitrogens where said nitrogens are optionally oxidised to form the N

PEGYLATION PROCESS

-

, (2008/06/13)

The present invention relates to the attachment of a polyethylene glycol (PEG) moiety to a target substrate. Processes for such attachment will be hereinafter referred to as "PEGylation" of the substrate. In particular, the present invention relates to a process for direct covalent PEGylation of a substrate, comprising the reaction of a halogenated PEG with the substrate wherein the halogen of the halogenated PEG acts as a leaving group in the PEGylation reaction.

Syntheses of Sulfonated Derivatives of 2-Fluoroaniline

Courtin, Alfred

, p. 68 - 75 (2007/10/02)

Synthesis of 4-amino-3-fluorobenzenesulfonic acid (3) was achieved in two ways: reaction of 2-fluoroaniline (1) with amidosulfonic acid and by first conventionally converting 4-nitro-3-fluoroaniline (8) to 4-nitro-3-fluorobenzenesulfonyl chloride (9) followed subsequently by hydrolysis to 3-fluoro-4-nitrobenzenesulfonic acid (10) and reduction.Hydrogenolysis of 3 gave sulfanilic acid (7).Both, sulfonation of fluorobenzene (6) to 4-fluorobenzenesulfonic acid (11) followed by nitration and sulfonation of 1-fluoro-2-nitrobenzene (12) led to 4-fluoro-3-nitrobenzenesulfonic acid (13).Reduction of 13 gave the isomeric 3-amino-4-fluorobenzenesulfonic acid (4), which was also obtained both by sulfonation of 1 and by sulfonation of o-fluoroacetanilide (14) followed by hydrolysis.Selective hydrogenolyses of 2-amino-5-bromo-3-fluorobenzenesulfonic acid (15), prepared by reaction of 4-bromo-2-fluoroaniline (16) with amidosulfonic acid, and of 4-amino-2-bromo-5-fluorobenzenesulfonic acid (20), obtained by sulfonation of 5-bromo-2-fluoroaniline (19) yielded the isomers 2-amino-3-fluorobenzenesulfonic acid (5) and 3, respectively.The fourth isomer, 3-amino-2-fluorobenzenesulfonic acid (2), was synthesized by sulfur dioxide treatment of the diazonium chloride derived from 2-fluoro-3-nitroaniline (21) to 2-fluoro-3-nitrobenzenesulfonyl chloride (22), followed by hydrolysis to 2-fluoro-3-nitrobenzenesulfonic acid (23) and final Bechamp-reduction.

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