4-Bromo-3,5-dimethylpyrazole - ≥99% , CAS No.3398-16-1

CAS: 3398-16-1 Cat. No.: B133385 Formula: C5H7BrN2 Molecular Weight: 175.03 Beilstein Registry Number: 23(5)5,154 EC Number: 222-263-2
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
4-bromanyl-3,5-dimethyl-1~{H}-pyrazole | 4-Bromo-3,5-dimethylpyrazole, 99% | EINECS 222-263-2 | NSC 50564 | AM20090519 | NCGC00330699-01 | 4-Bromo-3,5-dimethylpyrazole | 4-Bromo-3,5-dimethyl-pyrazole | 4-Bromo-3,5-dimethyl-1H-pyrazole | STK260857 | 4-Brom
Storage
Room temperature
Shipped In
Normal
Size
USA
Germany (EU)*
Price
Qty
5g
B133385-5g
4 In stock

$9.90

$13.90
Save $4.00 (28.78%)
25g
B133385-25g
6 In stock

$24.90

$35.90
Save $11.00 (30.64%)
100g
B133385-100g
In stock ≥10

$80.90

$126.90
Save $46.00 (36.25%)
500g
B133385-500g
1 In stock
1 In stock

$330.90

$569.90
Save $239.00 (41.94%)
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

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.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
4-bromanyl-3,5-dimethyl-1~{H}-pyrazole | 4-Bromo-3,5-dimethylpyrazole, 99% | EINECS 222-263-2 | NSC 50564 | AM20090519 | NCGC00330699-01 | 4-Bromo-3,5-dimethylpyrazole | 4-Bromo-3,5-dimethyl-pyrazole | 4-Bromo-3,5-dimethyl-1H-pyrazole | STK260857 | 4-Brom
Specifications & Purity
≥99%
Storage
Room temperature
Shipped In
Normal
Purity
≥99%
Names and Identifiers
Pubchem Sid488185347
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488185347
Canonical SmilesCC1=C(C(=NN1)C)Br
IUPAC Name4-bromo-3,5-dimethyl-1H-pyrazole
InChIKeyRISOHYOEPYWKOB-UHFFFAOYSA-N
INCHI1S/C5H7BrN2/c1-3-5(6)4(2)8-7-3/h1-2H3,(H,7,8)
Isomeric SMILES CC1=C(C(=NN1)C)Br
WGK Germany 3
RTECS UQ6210000
Molecular Weight 175.03
Beilstein 23(5)5,154
Reaxy-Rn 108534
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=108534&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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganohalogen compounds
ClassAryl halides
SubclassAryl bromides
Intermediate Tree Nodes Not available
Direct ParentAryl bromides
Alternative Parents Pyrazoles  Heteroaromatic compounds  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organobromides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Aryl bromide - Heteroaromatic compound - Pyrazole - Azole - Azacycle - Organoheterocyclic compound - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Organobromide - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as aryl bromides. These are organic compounds containing the acyl bromide functional 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.

7 results found

Lot NumberCertificate TypeDateItem
H1514096Certificate of AnalysisSep 07, 2026 B133385
C2209394Certificate of AnalysisSep 09, 2025 B133385
C2209407Certificate of AnalysisSep 09, 2025 B133385
C2209408Certificate of AnalysisSep 09, 2025 B133385
C2209429Certificate of AnalysisSep 09, 2025 B133385
E2326114Certificate of AnalysisMar 05, 2025 B133385
F2426029Certificate of AnalysisJul 01, 2024 B133385
Chemical and Physical Properties
SolubilitySoluble in Methanol
Melt Point(°C)123 °C
Molecular Weight175.030 g/mol
XLogP31.700
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass173.979 Da
Monoisotopic Mass173.979 Da
Topological Polar Surface Area28.700 Ų
Heavy Atom Count8
Formal Charge0
Complexity86.500
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
Solution Calculators
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