Molekula
Phenylacetylene
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Phenylacetylene is an organic compound featuring a terminal alkyne group attached to a benzene ring, widely used as a building block in pharmaceutical synthesis, polymer chemistry, and advanced materials research. Its reactivity makes it valuable for creating complex molecules, including natural product derivatives and liquid crystal polymers. Phenylacetylene has a CAS number of 536-74-3, a molecular formula of C6H5CCH, and a molecular weight of 102.13 g/mol. It must be stored between 2 to 8°C and carries a **Danger** signal word due to its hazardous properties. Molekula supplies Phenylacetylene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 27 °C |
| Transport Class | 8 (3) |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | -45 °C |
| Boiling Point | 142 °C at 760 mmHg |
| Vapour Pressure | 2.06 mmHg |
Source: PubChem CID 10821 (PAC Chemical Database, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90031701 |
| CAS Number | 536-74-3 |
| IUPAC Name | ethynylbenzene |
| EC Number | 208-645-1 |
| Molecular Formula | C6H5CCH |
| Molecular Weight | 102.13 |
| Exact Mass | 102.047 |
| SMILES | C#CC1=CC=CC=C1 |
| InChIKey | UEXCJVNBTNXOEH-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H6/c1-2-8-6-4-3-5-7-8/h1,3-7H |
| PubChem CID | 10821 |
| UN Number | UN2920 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2902.90.3050 |
| Tariff Code | 2902900000 |
Safety & GHS
-
Flammable
GHS02
-
Corrosive
GHS05
-
Serious Health Hazard
GHS08
Hazard statements
- H226 Flammable liquid and vapour
- H304 May be fatal if swallowed and enters airways
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H351 Suspected of causing cancer
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-ethynylbenzene
- 1-phenylacetylene
- 1-Phenylethyne
- Acetylene, phenyl-
- Benzene, ethynyl-
- Ethyne, phenyl-
- Ethynylbenzene
- Phenylacethylene
- Phenylacetylide
- Phenylethyne
Frequently asked questions
What is phenylacetylene commonly used for in research and industry?
Phenylacetylene is primarily used as a building block in organic synthesis, including the preparation of pharmaceuticals, polymers, and liquid crystals, as well as a reagent in click chemistry.
What is the molecular formula and molecular weight of phenylacetylene?
The molecular formula is **C₈H₆** (corrected from C₆H₅CCH), and the molecular weight is **102.13 g/mol**.
How should phenylacetylene be stored to maintain stability?
Store phenylacetylene at **2–8°C** in a cool, dry place, away from heat, sparks, and open flames, in a tightly sealed container.
What hazard classification does phenylacetylene fall under, and what safety precautions should be taken?
Phenylacetylene is marked with the **signal word 'Danger'** due to its flammability and potential toxicity. Handle in a fume hood with appropriate PPE, including gloves and goggles.
Does Molekula offer phenylacetylene in bulk quantities, and what are the minimum order requirements?
Yes, Molekula supplies phenylacetylene in bulk; minimum quantities vary by grade—contact our sales team for bulk pricing and availability.
What documentation is provided with a phenylacetylene order, including safety and quality assurance details?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.