tert-Butyl 4-ethynylbenzoate - ≥98% , CAS No.111291-97-5

CAS: 111291-97-5 Cat. No.: T189699 Molecular Weight: 202.25 PubChem CID: 13965008
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
4-Ethinyl benzoic acid tert.-butyl ester | AMY331 | DTXSID40553404 | tert.-butyl 4-ethynylbenzoate | AKOS015911092 | 4-ethinyl-benzoic acid tert.-butyl ester | A802336 | SCHEMBL6258711 | DS-4794 | FWAUARVBLKIMRS-UHFFFAOYSA-N | TERT-BUTYL 4-ETHYNYLBENZOATE
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
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50mg
T189699-50mg
3

$9.90

$14.90
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250mg
T189699-250mg
3

$22.90

$34.90
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1g
T189699-1g
3

$49.90

$74.90
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5g
T189699-5g
2

$238.90

$358.90
Save $120.00 (33.44%)
10g
T189699-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$429.90

$644.90
Save $215.00 (33.34%)
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Why this grade

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

🌡

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
4-Ethinyl benzoic acid tert.-butyl ester | AMY331 | DTXSID40553404 | tert.-butyl 4-ethynylbenzoate | AKOS015911092 | 4-ethinyl-benzoic acid tert.-butyl ester | A802336 | SCHEMBL6258711 | DS-4794 | FWAUARVBLKIMRS-UHFFFAOYSA-N | TERT-BUTYL 4-ETHYNYLBENZOATE
Specifications & Purity
≥98%
Storage
Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid504767541
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504767541
Canonical SmilesCC(C)(C)OC(=O)C1=CC=C(C=C1)C#C
IUPAC Nametert-butyl 4-ethynylbenzoate
InChIKeyFWAUARVBLKIMRS-UHFFFAOYSA-N
INCHI1S/C13H14O2/c1-5-10-6-8-11(9-7-10)12(14)15-13(2,3)4/h1,6-9H,2-4H3
Isomeric SMILES CC(C)(C)OC(=O)C1=CC=C(C=C1)C#C
PubChem CID 13965008
Molecular Weight 202.25

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.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzoic acid esters
Alternative Parents Benzoyl derivatives  Carboxylic acid esters  Monocarboxylic acids and derivatives  Acetylides  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzoate ester - Benzoyl - Carboxylic acid ester - Acetylide - Monocarboxylic acid or derivatives - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzoic acid esters. These are ester derivatives of benzoic acid.
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
L2209152Certificate of AnalysisSep 24, 2025 T189699
L1804069Certificate of AnalysisJul 15, 2024 T189699
L1804068Certificate of AnalysisJul 15, 2024 T189699
F2417054Certificate of AnalysisJun 25, 2024 T189699
Chemical and Physical Properties
Molecular Weight202.250 g/mol
XLogP33.000
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count4
Exact Mass202.099 Da
Monoisotopic Mass202.099 Da
Topological Polar Surface Area26.300 Ų
Heavy Atom Count15
Formal Charge0
Complexity269.000
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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