Molekula
cis-Stilbene
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
cis-Stilbene is an organic compound with a trans-stilbene isomer, primarily used as a precursor in pharmaceutical synthesis, polymer chemistry, and as a reference standard in analytical chemistry. It appears as a white crystalline solid with a distinct aromatic odor. This chemical has a CAS number of 645-49-8, a molecular formula of C14H12, and a molecular weight of 180.25 g/mol. It should be stored between 2 to 8°C and handled with caution, as it carries a signal word of *Warning* for safety. Molekula supplies cis-Stilbene 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.
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to light yellow liquid |
| Purity (HPLC) | ≥99.0% |
| NMR | Consistent with structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 110 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Liquid |
| Melting Point | 1 °C |
| Boiling Point | 135 °C at 10 mmHg |
| Vapour Pressure | 0.00686 mmHg |
| Refractive Index | 1.6188 |
Source: PubChem CID 5356785 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 90035189 |
| CAS Number | 645-49-8 |
| IUPAC Name | (Z)-stilbene |
| EC Number | 211-445-7 |
| Molecular Formula | C14H12 |
| Molecular Weight | 180.25 |
| Exact Mass | 180.0939 |
| SMILES | C1=CC=C(C=C1)/C=C\C2=CC=CC=C2 |
| InChIKey | PJANXHGTPQOBST-QXMHVHEDSA-N |
| InChI | InChI=1S/C14H12/c1-3-7-13(8-4-1)11-12-14-9-5-2-6-10-14/h1-12H/b12-11- |
| PubChem CID | 5356785 |
| REACH Code | Y113 |
| HTS Code | 2902909000 |
| Tariff Code | 2902900000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), 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
- (Z)-1,2-Diphenylethene
- (Z)-1,2-Diphenylethylene
- (Z)-Stilbene
- [(Z)-2-Phenylethenyl]benzene
- Benzene, 1,1'-(1,2-ethenediyl)bis-, (Z)-
- cis-1,2-Diphenylethylene
- cis-Diphenylethene
- Isostilbene
- Stilbene, (Z)-
- Stilbene, cis-
Frequently asked questions
What is cis-Stilbene commonly used for?
cis-Stilbene is primarily used as a reference compound in organic synthesis, photochemistry studies, and as a precursor in the production of polymers and liquid crystals.
What is the chemical formula and molecular weight of cis-Stilbene?
The chemical formula is **C14H12**, and the molecular weight is **180.25 g/mol**.
How should cis-Stilbene be stored?
Store cis-Stilbene at **2 to 8°C** in a cool, dry place, protected from light and moisture.
What purity grades of cis-Stilbene does Molekula offer?
Molekula supplies cis-Stilbene in **analytical standard grade (98%+ purity)**. Bulk or custom grades may be available upon request.
Can Molekula supply cis-Stilbene in bulk quantities?
Yes, Molekula can provide cis-Stilbene in bulk, subject to availability and minimum order quantities.
What documentation is provided with an order of cis-Stilbene?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a product specification sheet.
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.