Skip to the beginning of the images gallery

2-Bromo-4-fluorobenzenesulfonyl chloride - 97%, high purity , CAS No.351003-45-7

COA

Grade & Purity:

≥97%

Cas Number: 351003-45-7
Molecular Weight: 273.51
MDL number: MFCD03094149
PubChem CID: 2778216

In stock

Item Number

W134125

Grouped product items
SKU	Size	Availability	Price
W134125-1g	1g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$43.90
W134125-5g	5g	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$158.90
W134125-25g	25g	2	$713.90
W134125-100g	100g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$2,570.90

Basic Description

Synonyms	351003-45-7 \| 2-Bromo-4-fluorobenzenesulfonyl chloride \| 2-bromo-4-fluorobenzene-1-sulfonyl chloride \| 2-bromo-4-fluorobenzenesulphonyl chloride \| 2-Bromo-4-fluorobenzenesulfonylchloride \| 4-fluoro-2-bromobenzenesulfonyl chloride \| 2-bromo-4-fluoro-benzenesulfonyl Ch
Specifications & Purity	≥97%
Shipped In	Normal

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Benzenoids
  - Class Benzene and substituted derivatives
    - Subclass Benzenesulfonyl compounds
      - Level5 Benzenesulfonyl halides
        Level6 Benzenesulfonyl chlorides

Kingdom	Organic compounds
Superclass	Benzenoids
Class	Benzene and substituted derivatives
Subclass	Benzenesulfonyl compounds
Intermediate Tree Nodes	Benzenesulfonyl halides
Direct Parent	Benzenesulfonyl chlorides
Alternative Parents	Fluorobenzenes Bromobenzenes Aryl fluorides Aryl bromides Sulfonyls Sulfonyl chlorides Organosulfonic acids and derivatives Organofluorides Organobromides Organic oxides Hydrocarbon derivatives
Molecular Framework	Aromatic homomonocyclic compounds
Substituents	Benzenesulfonyl chloride - Bromobenzene - Fluorobenzene - Halobenzene - Aryl bromide - Aryl fluoride - Aryl halide - Sulfonyl - Sulfonyl halide - Sulfonyl chloride - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organohalogen compound - Organic oxide - Organic oxygen compound - Organobromide - Organofluoride - Organosulfur compound - Hydrocarbon derivative - Aromatic homomonocyclic compound
Description	This compound belongs to the class of organic compounds known as benzenesulfonyl chlorides. These are aromatic compounds containing a benzenesulfonyl group, where the sulfonyl moiety is singly boned to a chloride atom.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

IUPAC Name	2-bromo-4-fluorobenzenesulfonyl chloride
INCHI	InChI=1S/C6H3BrClFO2S/c7-5-3-4(9)1-2-6(5)12(8,10)11/h1-3H
InChIKey	GJPWPFVLPNTOOL-UHFFFAOYSA-N
Smiles	C1=CC(=C(C=C1F)Br)S(=O)(=O)Cl
Isomeric SMILES	C1=CC(=C(C=C1F)Br)S(=O)(=O)Cl
WGK Germany	3
PubChem CID	2778216
Molecular Weight	273.51

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

7 results found

Lot Number	Certificate Type	Date	Item
F2512099	Certificate of Analysis	Jun 21, 2025	W134125
K2125612	Certificate of Analysis	Jun 10, 2025	W134125
K2125611	Certificate of Analysis	Jun 10, 2025	W134125
H2423183	Certificate of Analysis	Jun 22, 2024	W134125
L2417196	Certificate of Analysis	Sep 12, 2023	W134125
H2118372	Certificate of Analysis	Jun 05, 2023	W134125
J1618054	Certificate of Analysis	May 12, 2022	W134125

Chemical and Physical Properties

Solubility	Hydrolyzes in water.
Sensitivity	Moisture sensitive
Flash Point(°F)	95 °F
Flash Point(°C)	35 °C
Boil Point(°C)	264-265°C
Molecular Weight	273.510 g/mol
XLogP3	2.700
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	1
Exact Mass	271.871 Da
Monoisotopic Mass	271.871 Da
Topological Polar Surface Area	42.500 Å²
Heavy Atom Count	12
Formal Charge	0
Complexity	251.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

Solution Calculators

Molarity Calculator

Determine the necessary mass, volume, or concentration for preparing a solution.

Mass

Concentration

Volume

M. Wt*

g/mol

*When preparing stock solutions, always use the batch-specific molecular weight of the product found on the vial label and the Certificate of Analysis (available online).

Dilution Calculator

Determine the dilution needed to prepare a stock solution.

Concentration 1 (C1)

Volume 1 (V1)

Concentration 2 (C2)

Volume 2 (V2)

Reconstitution Calculator

The reconstitution calculator enables you to quickly determine the volume of a reagent needed to reconstitute your vial. Just enter the mass of the reagent and the target concentration, and the calculator will do the rest.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration