1,3,5-Trimethylpyrazole-4-boronic Acid Pinacol Ester - ≥97% , CAS No.844891-04-9

CAS: 844891-04-9 Cat. No.: T134040 Molecular Weight: 236.12 EC Number: 677-047-4 PubChem CID: 2795311
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
(1,3,5-TRIMETHYL-1H-PYRAZOL-4-YL)BORONIC ACID PINACOL ESTER | 1,3,5-trimethyl-1H-pyrazole-4-boronic pinacol ester | 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3,5-trimethyl-pyrazole | MFCD06659062 | SCHEMBL252454 | Z1336745217 | 1H-Pyrazole,1,3,5-
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
T134040-250mg
3

$10.90

$16.90
Save $6.00 (35.50%)
1g
T134040-1g
5

$12.90

$19.90
Save $7.00 (35.18%)
5g
T134040-5g
5

$26.90

$40.90
Save $14.00 (34.23%)
10g
T134040-10g
1

$32.90

$49.90
Save $17.00 (34.07%)
25g
T134040-25g
1

$70.90

$106.90
Save $36.00 (33.68%)
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Why this grade

≥97% 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.

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Literature proof

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

Specifications

Synonyms
(1, 3, 5-TRIMETHYL-1H-PYRAZOL-4-YL)BORONIC ACID PINACOL ESTER | 1, 3, 5-trimethyl-1H-pyrazole-4-boronic pinacol ester | 4-(4, 4, 5, 5-tetramethyl-[1, 3, 2]dioxaborolan-2-yl)-1, 3, 5-trimethyl-pyrazole | MFCD06659062 | SCHEMBL252454 | Z1336745217 | 1H-Pyrazole, 1, 3, 5-
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488194005
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488194005
Canonical SmilesB1(OC(C(O1)(C)C)(C)C)C2=C(N(N=C2C)C)C
IUPAC Name1,3,5-trimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole
InChIKeyIZNGYNMIIVJWSO-UHFFFAOYSA-N
INCHI1S/C12H21BN2O2/c1-8-10(9(2)15(7)14-8)13-16-11(3,4)12(5,6)17-13/h1-7H3
Isomeric SMILES B1(OC(C(O1)(C)C)(C)C)C2=C(N(N=C2C)C)C
WGK Germany 3
PubChem CID 2795311
Molecular Weight 236.12

Documentation

📋 Safety Data Sheet (SDS)

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

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✅ Certificate of Analysis (COA)

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

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassBoronic acid derivatives
SubclassBoronic acid esters
Intermediate Tree Nodes Not available
Direct ParentBoronic acid esters
Alternative Parents Pyrazoles  Heteroaromatic compounds  Dioxaborolanes  Oxacyclic compounds  Organic metalloid salts  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Organoboron compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Azole - Boronic acid ester - 1,3,2-dioxaborolane - Pyrazole - Heteroaromatic compound - Organoheterocyclic compound - Organic metalloid salt - Azacycle - Oxacycle - Organic salt - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organoboron compound - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as boronic acid esters. These are compounds comprising the boronic acid ester functional group RN(X)OR' (R,R'=alkyl, aryl; X= any O, N, Hal residue).
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.

6 results found

Lot NumberCertificate TypeDateItem
C2209648Certificate of AnalysisOct 27, 2025 T134040
C2209649Certificate of AnalysisOct 27, 2025 T134040
C2209650Certificate of AnalysisOct 27, 2025 T134040
C2209691Certificate of AnalysisOct 27, 2025 T134040
L2416688Certificate of AnalysisDec 11, 2023 T134040
E1715089Certificate of AnalysisJan 05, 2023 T134040
Chemical and Physical Properties
SolubilitySoluble in Methanol
Melt Point(°C)101 °C
Molecular Weight236.120 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass236.17 Da
Monoisotopic Mass236.17 Da
Topological Polar Surface Area36.300 Ų
Heavy Atom Count17
Formal Charge0
Complexity293.000
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
Solution Calculators
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