Benzenesulfonic acid(BSA) - anhydrous, ≥98% , CAS No.98-11-3

CAS: 98-11-3 Cat. No.: B104130 Molecular Weight: 158.18 Beilstein Registry Number: 742513 EC Number: 202-638-7
AVAILABLE TO ORDER
GRADE & PURITY Anhydrous Grade ? Anhydrous grade — water removed and packaged dry for moisture-sensitive chemistry. Use in reactions where even trace water would interfere or quench. ≥98%
Synonyms
AMY20768 | CAS-98-11-3 | AI3-15297 | EINECS 202-638-7 | Benzenesulfonic acid, (benzene < 2 ppm) | Tox21_201960 | NCGC00256989-01 | Q421494 | SCHEMBL2509 | BCP30635 | CHEBI:64455 | DTXSID9024568 | SR-01000944759-1 | Kyselina benzensulfonova | starbld003487
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
B104130-5g
3

$11.90

$22.90
Save $11.00 (48.03%)
25g
B104130-25g
3

$41.90

$77.90
Save $36.00 (46.21%)
100g
B104130-100g
1

$129.90

$217.90
Save $88.00 (40.39%)
500g
B104130-500g
1

$382.90

$760.90
Save $378.00 (49.68%)
Enter a quantity for the sizes you want to add.
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Why this grade

anhydrous, ≥98% Anhydrous Grade for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Argon charged,Room temperature Ships Normal 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 21 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
AMY20768 | CAS-98-11-3 | AI3-15297 | EINECS 202-638-7 | Benzenesulfonic acid, (benzene < 2 ppm) | Tox21_201960 | NCGC00256989-01 | Q421494 | SCHEMBL2509 | BCP30635 | CHEBI:64455 | DTXSID9024568 | SR-01000944759-1 | Kyselina benzensulfonova | starbld003487
Specifications & Purity
anhydrous, ≥98%
Storage
Argon charged, Room temperature
Shipped In
Normal
Grade
Anhydrous Grade
Purity
≥98%
Names and Identifiers
Pubchem Sid504751321
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504751321
Canonical SmilesC1=CC=C(C=C1)S(=O)(=O)O
IUPAC Namebenzenesulfonic acid
InChIKeySRSXLGNVWSONIS-UHFFFAOYSA-N
INCHI1S/C6H6O3S/c7-10(8,9)6-4-2-1-3-5-6/h1-5H,(H,7,8,9)
Isomeric SMILES C1=CC=C(C=C1)S(=O)(=O)O
WGK Germany 1
RTECS DB4200000
UN Number 2583
Packing Group II
Molecular Weight 158.18
Beilstein 742513
Reaxy-Rn 742513
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=742513&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
SubclassBenzenesulfonic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzenesulfonic acids and derivatives
Alternative Parents Benzenesulfonyl compounds  1-sulfo,2-unsubstituted aromatic compounds  Sulfonyls  Organosulfonic acids  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzenesulfonate - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Arylsulfonic acid or derivatives - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzenesulfonic acids and derivatives. These are organic compounds containing a sulfonic acid or a derivative thereof that is linked to a benzene ring.
External Descriptors benzenesulfonic acids
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
AR Tclin Androgen Receptor (11781 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TSHR Tclin Thyroid stimulating hormone receptor (29986 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
THRB Tclin Thyroid hormone receptor beta-1 (7926 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
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.

48 results found

Lot NumberCertificate TypeDateItem
F2622608Certificate of AnalysisJun 26, 2026 B104130
F2622607Certificate of AnalysisJun 26, 2026 B104130
F2622606Certificate of AnalysisJun 26, 2026 B104130
F2622605Certificate of AnalysisJun 26, 2026 B104130
L2503489Certificate of AnalysisDec 05, 2025 B104130
L2503488Certificate of AnalysisDec 05, 2025 B104130
L2503457Certificate of AnalysisDec 05, 2025 B104130
B2211264Certificate of AnalysisOct 30, 2025 B104130
D2510356Certificate of AnalysisApr 19, 2025 B104130
E2627055Certificate of AnalysisApr 18, 2025 B104130
D2510403Certificate of AnalysisApr 18, 2025 B104130
D2510354Certificate of AnalysisApr 18, 2025 B104130
D2510355Certificate of AnalysisApr 18, 2025 B104130
D2510357Certificate of AnalysisApr 18, 2025 B104130
J2425400Certificate of AnalysisNov 06, 2024 B104130
J2425413Certificate of AnalysisNov 06, 2024 B104130
J2425411Certificate of AnalysisNov 06, 2024 B104130
J2425404Certificate of AnalysisNov 06, 2024 B104130
G2509051Certificate of AnalysisNov 06, 2024 B104130
J2425403Certificate of AnalysisNov 06, 2024 B104130
F2414351Certificate of AnalysisJun 28, 2024 B104130
F2414352Certificate of AnalysisJun 28, 2024 B104130
F2414353Certificate of AnalysisJun 28, 2024 B104130
C2401139Certificate of AnalysisMar 26, 2024 B104130
C2401143Certificate of AnalysisMar 26, 2024 B104130
C2401142Certificate of AnalysisMar 26, 2024 B104130
C2401141Certificate of AnalysisMar 26, 2024 B104130
C2401140Certificate of AnalysisMar 26, 2024 B104130
K2324125Certificate of AnalysisNov 29, 2023 B104130
K2324126Certificate of AnalysisNov 29, 2023 B104130
K2324128Certificate of AnalysisNov 28, 2023 B104130
K2324127Certificate of AnalysisNov 28, 2023 B104130
J2312670Certificate of AnalysisOct 08, 2023 B104130
J2312671Certificate of AnalysisOct 08, 2023 B104130
J2312669Certificate of AnalysisOct 08, 2023 B104130
F2320175Certificate of AnalysisJun 21, 2023 B104130
F2320174Certificate of AnalysisJun 21, 2023 B104130
B2317283Certificate of AnalysisFeb 23, 2023 B104130
B2317173Certificate of AnalysisFeb 23, 2023 B104130
B2317179Certificate of AnalysisFeb 23, 2023 B104130
B2317189Certificate of AnalysisFeb 23, 2023 B104130
H2224260Certificate of AnalysisSep 03, 2022 B104130
B2211265Certificate of AnalysisMay 10, 2022 B104130
B2211208Certificate of AnalysisMay 10, 2022 B104130
K2303173Certificate of AnalysisMay 10, 2022 B104130
K2224201Certificate of AnalysisMay 10, 2022 B104130
I2228186Certificate of AnalysisMay 10, 2022 B104130
B2211266Certificate of AnalysisMay 10, 2022 B104130

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Chemical and Physical Properties
SolubilitySoluble in water and alcohol. Slightly soluble in benzene. Insoluble in non-polar solvents.
SensitivityHygroscopic.
Flash Point(°F)>235.4 °F
Flash Point(°C)>113 °C
Boil Point(°C)137°C
Melt Point(°C)58-64℃
Molecular Weight158.180 g/mol
XLogP30.000
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass158.004 Da
Monoisotopic Mass158.004 Da
Topological Polar Surface Area62.800 Ų
Heavy Atom Count10
Formal Charge0
Complexity184.000
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
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2. Luming Wang, Yuhang Bian, Zhenyu Wu, Zengxi Li, Gang Wang, Chunshan Li.  (2023)  Revealing the role of hydrogen bond, mechanism and kinetic for hydroesterification of ethylene to methyl propionate.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2023.144331]
3. Xue Juan, Yin Xuewu, Xue Lulu, Zhang Chenglin, Dong Shihua, Yang Li, Fang Yuanlai, Li Yong, Li Ling, Cui Jiaxi.  (2022)  Self-growing photonic composites with programmable colors and mechanical properties.  Nature Communications,  13  (1): (1-10).  [PMID:36535934] [10.1038/s41467-022-35555-0]
4. Cheng Chen, Yu Zhao, Ting Lei, Dingming Yang, Yanfang Zhou, Jiawei Zeng, Ruzhen Xie, Wenyuan Hu, Faqin Dong.  (2022)  Photocatalytic mechanism conversion of titanium dioxide induced via surface interface coordination.  CHEMOSPHERE,      [PMID:36209860] [10.1016/j.chemosphere.2022.136745]
5. Yu Peng, Luyao Jiang, Junhua Di, Cuiluan Ma, Qi Li, Yucai He.  (2022)  A Hybrid Process for Valorization of d-Fructose to 2,5-Bis(hydroxymethyl)furan by Bridging Chemocatalysis and Biocatalysis in a Betaine:Benzenesulfonic Acid System.  ACS Sustainable Chemistry & Engineering,      [PMID:] [10.1021/acssuschemeng.2c02702]
6. Haoyi Lin, Jiaxing Zhang, Qingxu Duan, Kaixuan Yang, Weiping Liao, Shixue Qi, Hongying Lü, Zhiguo Zhu.  (2022)  Dealumination-controlled strategy mediates Ti–Y zeolite with cooperative active sites for selective oxidations.  Catalysis Science & Technology,  12  (15): (4837-4850).  [PMID:] [10.1039/D2CY00808D]
7. Zhe Wang, Xiaozi Lin, Yuanxing Huang, Luming Ma.  (2022)  The role of hydroxylation on·OH generation for enhanced ozonation of benzoic acids: Reactivity, ozonation efficiency and radical formation mechanism.  JOURNAL OF HAZARDOUS MATERIALS,      [PMID:35278955] [10.1016/j.jhazmat.2022.128620]
8. Xiaoyu Yao, Xuan Meng, Jie Yin, Tao Yin, Tianyi Luo, Naiwang Liu, Li Shi.  (2022)  Efficient removal of trace olefins in aromatics by novel acetamide-based acidic deep eutectic solvents.  FUEL,      [PMID:] [10.1016/j.fuel.2021.123103]
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10. Shaoqi Yang, Guangming Cai, Xingmei Lu, Chenguang Wang, Mi Feng, Junli Xu, Qing Zhou, Jiayu Xin, Longlong Ma.  (2020)  Selective Deoxygenation of Lignin-Derived Phenols and Dimeric Ethers with Protic Ionic Liquids.  INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,      [PMID:] [10.1021/acs.iecr.9b05984]
11. Jiajia Xu, Zhiguo Zhu, Ting Su, Weiping Liao, Changliang Deng, Dongmei Hao, Yuchao Zhao, Wanzhong Ren, Hongying Lü.  (2020)  Green aerobic oxidative desulfurization of diesel by constructing an Fe-Anderson type polyoxometalate and benzene sulfonic acid-based deep eutectic solvent biomimetic cycle.  CHINESE JOURNAL OF CATALYSIS,      [PMID:] [10.1016/S1872-2067(19)63500-X]
12. Huan Wang, Yuhua Wang, Xiaoling Sun, Huiping Hu, Qifan Peng.  (2019)  Two functional post-cross-linked polystyrene resins: Effect of structure on the enhanced removal of benzene sulfonic acid.  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,      [PMID:] [10.1016/j.colsurfa.2019.124398]
13. Pengcheng Hu, Zhitao Wu, Junlin Wang, Yuqing Huang, Quanyou Liu, Shu-Feng Zhou.  (2019)  Corrosion inhibiting performance and mechanism of protic ionic liquids as green brass inhibitors in nitric acid.  Green Energy & Environment,      [PMID:] [10.1016/j.gee.2019.11.003]
14. Cai Guangming, Yang Shaoqi, Zhou Qing, Liu Lifei, Lu Xingmei, Xu Junli, Zhang Suojiang.  (2019)  Physicochemical Properties of Various 2-Hydroxyethylammonium Sulfonate -Based Protic Ionic Liquids and Their Potential Application in Hydrodeoxygenation.  Frontiers in Chemistry,      [PMID:31024888] [10.3389/fchem.2019.00196]
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19. Wen Zhou, Fucheng Zhu, Yuanlin Li, Chen Liu, Jie Xu, Houmei Liu.  (2025)  Developing a solid-phase extraction method based on a novel polymer-silica composite for analysis of sulfonate genotoxic impurities in drugs.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2025.113182]
20. Kun Jia, Peng Jia.  (2025)  Protons Selectively Regulate the Asymmetric Activation of the C─H Bonds of Methanol Molecules.  ChemistrySelect,  10  (7): (e202405464).  [PMID:] [10.1002/slct.202405464]
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