2,4-Dinitrobenzenesulfonyl chloride - ≥96% , CAS No.1656-44-6

CAS: 1656-44-6 Cat. No.: D683701 Molecular Weight: 266.62 EC Number: 216-749-3
AVAILABLE TO ORDER
GRADE & PURITY ≥96%
Storage
Room temperature,Argon charged,Desiccated
Shipped In
FedEx DG Service
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
D683701-1g
2
$39.90
5g
D683701-5g
2
$143.90
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Why this grade

≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged,Desiccated Ships FedEx DG Service Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

2,4-Dinitrobenzenesulfonyl chloride is a useful synthesis reagent. It is used to protect primary amines.

2,4-Dinitrobenzenesulfonyl chloride was used to protect primary amines. It was used as starting reagent in the synthesis of tert-butyl 2-[(2,4-dinitrophenyl) sulfonyl]amino acetate.

Specifications

Specifications & Purity
≥96%
Storage
Room temperature, Argon charged, Desiccated
Shipped In
FedEx DG Service
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥96%
Names and Identifiers
Canonical SmilesC1=CC(=C(C=C1[N+](=O)[O-])[N+](=O)[O-])S(=O)(=O)Cl
IUPAC Name2,4-dinitrobenzenesulfonyl chloride
InChIKeySSFSNKZUKDBPIT-UHFFFAOYSA-N
INCHI1S/C6H3ClN2O6S/c7-16(14,15)6-2-1-4(8(10)11)3-5(6)9(12)13/h1-3H
Isomeric SMILES C1=CC(=C(C=C1[N+](=O)[O-])[N+](=O)[O-])S(=O)(=O)Cl
UN Number 3261
Packing Group II
Molecular Weight 266.62
Reaxy-Rn 2147583
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2147583&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzenesulfonyl compounds
Intermediate Tree Nodes Benzenesulfonyl halides
Direct ParentBenzenesulfonyl chlorides
Alternative Parents Nitrobenzenes  Nitroaromatic compounds  Sulfonyls  Sulfonyl chlorides  Organosulfonic acids and derivatives  Propargyl-type 1,3-dipolar organic compounds  Organic oxoazanium compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzenesulfonyl chloride - Nitrobenzene - Nitroaromatic compound - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Sulfonyl chloride - Sulfonyl halide - Sulfonyl - C-nitro compound - Organic nitro compound - Organic oxoazanium - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Allyl-type 1,3-dipolar organic compound - Organic oxide - Organopnictogen compound - Organosulfur compound - Organonitrogen compound - Hydrocarbon derivative - Organic nitrogen compound - Organic oxygen compound - Aromatic homomonocyclic compound
DescriptionThis 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
3D Structure
Interactive Chemical Structure Model





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.

3 results found

Lot NumberCertificate TypeDateItem
E2423462Certificate of AnalysisMay 28, 2024 D683701
E2423463Certificate of AnalysisMay 28, 2024 D683701
E2423464Certificate of AnalysisMay 28, 2024 D683701
Chemical and Physical Properties
SolubilityReacts with water.
SensitivityMoisture sensitive.
Melt Point(°C)100-104°C
Molecular Weight266.620 g/mol
XLogP31.700
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count1
Exact Mass265.94 Da
Monoisotopic Mass265.94 Da
Topological Polar Surface Area134.000 Ų
Heavy Atom Count16
Formal Charge0
Complexity393.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Guanfan Chen, Mengzhuo Tang, Xiufang Fu, Fenmin Cheng, Xianghua Zou, Jingpei Wang, Rongjin Zeng.  (2017)  A highly sensitive and selective fluorescent sensor for detection of sulfide anion based on the steric hindrance effect.  JOURNAL OF MOLECULAR STRUCTURE,      [PMID:] [10.1016/j.molstruc.2017.08.049]
2. Zi-Yu Zhang, Yi-Yue Feng, Ju Luo, Wei Wang, XianXiu Qiu, Wen-Chao Yang.  (2025)  A glutathione S-transferase-activated fluorogenic sensor for in vivo plant stress diagnostics.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2025.137456]
3. Wu Zhengjun, Zhao Taotao, Jiang Xingyue, Zhang Dan, Wang Feiyi, Ren Xiaoming, Wang Zhao, Wang Erfei, Ren Jun.  (2024)  A near-infrared fluorescent probe with a large Stokes shift for the detection and imaging of biothiols in vitro and in vivo.  ANALYTICAL AND BIOANALYTICAL CHEMISTRY,      [PMID:39322801] [10.1007/s00216-024-05537-w]
4. Yudong Xue, Jia Tian, Zhiyong Liu, Jianbo Chen, Mengsi Wu, Yongjia Shen, Weian Zhang.  (2019)  A Redox Stimulation-Activated Amphiphile for Enhanced Photodynamic Therapy.  BIOMACROMOLECULES,      [PMID:31244019] [10.1021/acs.biomac.9b00581]
5. Meili Yang, Zuzhe Kang, Xinpei Zhong, Sirui Bai, Dong-En Wang, Qin Tu, Sheng Chen, Jinyi Wang, Mao-Sen Yuan.  (2025)  Visualizing GSH-ONOO− Redox and Tracking Lesion-Remedy of Acute Kidney Oxidative Injury Based on a Dual-Site Chemosensor.  Advanced Healthcare Materials,      [PMID:40424091] [10.1002/adhm.202500907]
6. He Gao, Haiyan Ma, Ling Yan, Shiqi Li, Longbin Xu.  (2026)  Sequential and selective fluorescent detection of sulfur pollutants in environmental water using a dual-channel probe.  JOURNAL OF MOLECULAR STRUCTURE,      [PMID:] [10.1016/j.molstruc.2026.145563]
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