4-Methylbenzyl bromide - ≥98% , CAS No.104-81-4

CAS: 104-81-4 Cat. No.: M109534 Molecular Weight: 185.06 Beilstein Registry Number: 507389 EC Number: 203-240-6
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
4-Methylbenzylbromide | 4-methyl-benzylbromide | EINECS 203-240-6 | p-Xylyl alpha-bromide | .alpha.-Bromo-p-xylene | 4-(methyl)benzyl bromide | FT-0631577 | V2DIK2AP5I | alpha-Bromo-p-xylene | NSC8050 | NSC-8050 | 4methylbenzyl bromide | 4-Methylbenzyl br
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
M109534-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
5g
M109534-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$22.90
25g
M109534-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$65.90
100g
M109534-100g
2
$198.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
4-Methylbenzylbromide | 4-methyl-benzylbromide | EINECS 203-240-6 | p-Xylyl alpha-bromide | .alpha.-Bromo-p-xylene | 4-(methyl)benzyl bromide | FT-0631577 | V2DIK2AP5I | alpha-Bromo-p-xylene | NSC8050 | NSC-8050 | 4methylbenzyl bromide | 4-Methylbenzyl br
Specifications & Purity
≥98%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Canonical SmilesCC1=CC=C(C=C1)CBr
IUPAC Name1-(bromomethyl)-4-methylbenzene
InChIKeyWZRKSPFYXUXINF-UHFFFAOYSA-N
INCHI1S/C8H9Br/c1-7-2-4-8(6-9)5-3-7/h2-5H,6H2,1H3
Isomeric SMILES CC1=CC=C(C=C1)CBr
WGK Germany 3
UN Number 3417
Molecular Weight 185.06
Beilstein 507389
Reaxy-Rn 507389
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=507389&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
SubclassBenzyl halides
Intermediate Tree Nodes Not available
Direct ParentBenzyl bromides
Alternative Parents Toluenes  Organobromides  Hydrocarbon derivatives  Alkyl bromides  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzyl bromide - Toluene - Hydrocarbon derivative - Organobromide - Organohalogen compound - Alkyl halide - Alkyl bromide - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzyl bromides. These are organic compounds containing a benzene skeleton substituted with a bromomethyl group.
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.

12 results found

Lot NumberCertificate TypeDateItem
H2206210Certificate of AnalysisFeb 04, 2026 M109534
H2206211Certificate of AnalysisFeb 04, 2026 M109534
F2506071Certificate of AnalysisJun 11, 2025 M109534
D23031024Certificate of AnalysisJan 13, 2025 M109534
D23031111Certificate of AnalysisJan 13, 2025 M109534
D23031123Certificate of AnalysisJan 13, 2025 M109534
H2126338Certificate of AnalysisJun 05, 2023 M109534
H2126339Certificate of AnalysisJun 05, 2023 M109534
H2126340Certificate of AnalysisJun 05, 2023 M109534
H2126341Certificate of AnalysisJun 05, 2023 M109534
G2417051Certificate of AnalysisMar 21, 2023 M109534
H2206213Certificate of AnalysisJul 18, 2022 M109534

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Chemical and Physical Properties
SolubilityInsoluble in water.
SensitivityLight sensitive;Air sensitive
Freezing Point(°C)35 °C
Flash Point(°F)208.4 °F
Flash Point(°C)97 °C
Boil Point(°C)218-220°C
Melt Point(°C)33-37°C
Molecular Weight185.060 g/mol
XLogP33.000
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count1
Exact Mass183.989 Da
Monoisotopic Mass183.989 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity72.600
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
Citations of This Product
References
1. Yuan Liu, Binghui Xue, Yuyan Lai, Linkun Cai, Kun Chen, Panchao Yin.  (2023)  Microscopic mechanism of gas transport in mixed matrix membranes of coordination nanocages.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2023.121821]
2. Qiaohong Peng, Li Wei, Xiaoyan Zhang, Ying Wu, Khalid Mahmood, Zhengping Liu, Lisha Zhang.  (2021)  Direct polycondensation of l-lactic acid in hydrophobic bis(trifluoromethanesulfonyl)imide-anionic ionic liquids: A kinetic study.  EUROPEAN POLYMER JOURNAL,      [PMID:] [10.1016/j.eurpolymj.2021.110692]
3. Qing-Ling Cao, Wen-He Zhong, Jie-Yu Zhu, Cai-Hong Shi, Jia-Jia Zhao, Li-Zhuang Chen.  (2025)  High photoluminescence quantum yield modulation of zero-dimensional organic–inorganic Mn(II) metal halides by substituent modification.  DALTON TRANSACTIONS,      [PMID:41054807] [10.1039/D5DT01992C]
Solution Calculators
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