Description

3-(3-Thienyl)acrylic acid (CAS: 102696-71-9) is a high-purity organic compound with the molecular formula C₇H₆O₂S. This thiophene-based acrylic acid derivative is widely utilized in pharmaceutical research, material science, and organic synthesis due to its unique conjugated structure and reactive carboxylic acid functionality. The product is available in crystalline form with a guaranteed purity of ≥97%, ensuring consistency for sensitive applications. Its trans-configuration (E-isomer) enhances stability and reactivity in polymerization and cross-coupling reactions. Ideal for researchers developing conductive polymers, photoactive materials, or bioactive molecules, this compound is packaged under inert conditions to prevent degradation. MSDS and NMR/LCMS analytical data are provided for quality verification.

Properties

• CAS Number: 102696-71-9
• Complexity: 154
• IUPAC Name: (E)-3-(3-thienyl)prop-2-enoic acid
• InChI: InChI=1S/C7H6O2S/c8-7(9)2-1-6-3-4-10-5-6/h1-5H,(H,8,9)/b2-1+
• InChI Key: VYRYYUKILKRGDN-OWOJBTEDSA-N
• Exact Mass: 154.00885060
• Molecular Formula: C7H6O2S
• Molecular Weight: 154.19
• SMILES: C1=CSC=C1/C=C/C(=O)O
• Topological: 65.5
• Monoisotopic Mass: 154.00885060
• Synonyms: 3-(3-Thienyl)acrylic acid, 102696-71-9, 1195-52-4, trans-3-(3-Thienyl)acrylic acid, 3-thien-3-ylacrylic acid, (e)-3-(thiophen-3-yl)acrylic acid, 3-(thiophen-3-yl)acrylic acid, 3-Thiopheneacrylic Acid, (2E)-3-(thiophen-3-yl)prop-2-enoic acid, 2-Propenoic acid, 3-(3-thienyl)-, (2E)-, (E)-3-thiophen-3-ylprop-2-enoic acid, 2-Propenoic acid, 3-(3-thienyl)-, MFCD00014535, Trans-3-(3-thienyl)acrylic, (2E)-3-(3-thienyl)prop-2-enoic acid, 3-(thiophen-3-yl)prop-2-enoic acid, (2E)-3-(3-Thienyl)-2-propenoic Acid; (E)-3-(3-Thienyl)-2-propenoic Acid; (E)-3-(Thiophen-3-yl)acrylic Acid; trans-3-(3-Thienyl)acrylic Acid; trans-3-(Thiophen-3-yl)acrylic Acid, EINECS 214-800-4, AI-942/25034372, BIDD:GT0240, 3-(thiophen-3-yl)acrylicacid, SCHEMBL1126746, CHEMBL3397062, .beta.-(3-Thienyl)acrylic acid, 3-(3-thienyl)-2-propenoic acid, DTXSID601294323, HMS1746B11, (e)-3-(thien-3-yl)acrylic acid, 2-Propenoic acid,3-(3-thienyl)-, trans-3-thiophen-3-yl-acrylic acid, SBB004033, AKOS000263639, AKOS022488545, (E)-3-(3-Thienyl)-2-propenoic acid, NCGC00329821-01, trans-3-(3-Thienyl)acrylic acid, 97%, (2E)-3-(3-Thienyl)-2-propenoic acid, PD020346, TS-02061, (2E)-3-(3-Thienyl)-2-propenoic acid #, HY-124251, CS-0086036, NS00041964, ST50949611, EN300-12891, EN300-364942, W11773, AB01324340-02, Z2417572197

Used as a monomer in electropolymerization for conductive polymer films (e.g., PEDOT analogs). Serves as a building block in organic electronics and nonlinear optical materials. Applied in medicinal chemistry for heterocyclic drug design via carboxyl-directed coupling reactions. Suitable for click chemistry modifications due to its α,β-unsaturated system.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.