1-Boc-3-methyl-1H-pyrazole-5-boronic Acid(contains varying amounts of Anhydride) - ≥97% , CAS No.1217501-27-3

CAS: 1217501-27-3 Cat. No.: B733229 Molecular Weight: 226.04 EC Number: 800-528-9 PubChem CID: 53216326
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
(1-(tert-Butoxycarbonyl)-3-methyl-1H-pyrazol-5-yl)boronic acid
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
B733229-50mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
250mg
B733229-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$25.90
1g
B733229-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$66.90
5g
B733229-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$251.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Argon charged Ships Ice chest + Ice pads 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
(1-(tert-Butoxycarbonyl)-3-methyl-1H-pyrazol-5-yl)boronic acid
Specifications & Purity
≥97%
Storage
Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesB(C1=CC(=NN1C(=O)OC(C)(C)C)C)(O)O
IUPAC Name[5-methyl-2-[(2-methylpropan-2-yl)oxycarbonyl]pyrazol-3-yl]boronic acid
InChIKeyJCGANVBFCXPIOL-UHFFFAOYSA-N
INCHI1S/C9H15BN2O4/c1-6-5-7(10(14)15)12(11-6)8(13)16-9(2,3)4/h5,14-15H,1-4H3
Isomeric SMILES B(C1=CC(=NN1C(=O)OC(C)(C)C)C)(O)O
PubChem CID 53216326
Molecular Weight 226.04

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
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassPyrazoles
Intermediate Tree Nodes Not available
Direct ParentPyrazole carboxylic acids and derivatives
Alternative Parents Heteroaromatic compounds  Boronic acids  Organic metalloid salts  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Organometalloid compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Pyrazole-1-carboxylic acid or derivatives - Heteroaromatic compound - Boronic acid - Boronic acid derivative - Azacycle - Organic metalloid salt - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organic metalloid moeity - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyrazole carboxylic acids and derivatives. These are heterocyclic compounds containing a pyrazole ring in which a hydrogen atom is replaced by a carboxylic acid 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.

4 results found

Lot NumberCertificate TypeDateItem
L2516249Certificate of AnalysisOct 28, 2025 B733229
L2516250Certificate of AnalysisOct 28, 2025 B733229
L2516257Certificate of AnalysisOct 28, 2025 B733229
L2516262Certificate of AnalysisOct 28, 2025 B733229
Chemical and Physical Properties
SensitivityMoisture sensitive
Molecular Weight226.040 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count3
Exact Mass226.112 Da
Monoisotopic Mass226.112 Da
Topological Polar Surface Area84.600 Ų
Heavy Atom Count16
Formal Charge0
Complexity267.000
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
Solution Calculators
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