Molekula
Quinoline
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
Quinoline is a heterocyclic aromatic compound used in the synthesis of dyes, pharmaceuticals, and agrochemicals. It is a clear to pale yellow liquid with a distinctive odor. Available in high purity, it has a CAS number of 91-22-5, molecular formula C9H7N, and molecular weight of 129.16 g/mol. Stored at ambient temperature, it is classified as dangerous. Molekula supplies Quinoline 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £49.70 per pack ex VAT · £59.64 inc. VAT
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
| Property | Value |
|---|---|
| Appearance | Colourless to light brown liquid |
| Assay | ≥98% |
| Water (KF) | ≤0.50% |
| Isoquinoline | ≤2.00% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 101 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless to brown /srp: technical grade/ |
| Odour | Penetrating odor, not as offensive as pyridine |
| Melting Point | -14.78 °C |
| Boiling Point | 238 °C |
| Density | 1.09 (relative, water = 1) |
| Solubility (other solvents) | Soluble in alcohol, ether, and carbon disulfide |
| Vapour Pressure | 8 Pa at 20 °C |
| Refractive Index | 1.62683 |
| pKa | pKa = 4.90 |
| log P (octanol/water) | 2.03 |
Source: PubChem CID 7047 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 13234019 |
| CAS Number | 91-22-5 |
| IUPAC Name | quinoline |
| EC Number | 202-051-6 |
| Molecular Formula | C9H7N |
| Molecular Weight | 129.16 |
| Exact Mass | 129.0578 |
| SMILES | C1=CC=C2C(=C1)C=CC=N2 |
| InChIKey | SMWDFEZZVXVKRB-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H7N/c1-2-6-9-8(4-1)5-3-7-10-9/h1-7H |
| PubChem CID | 7047 |
| UN Number | UN2656 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29334970 |
| Tariff Code | 2933499030 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H312 Harmful in contact with skin
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H341 Suspected of causing genetic defects
- H350 May cause cancer
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P264 Wash thoroughly after handling
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P315 Get immediate medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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-Azanaphthalene
- 1-Benzazine
- 2,3-Benzopyridine
- Benzopyridine
- Chinoleine
- Chinolin
- Chinoline
- Leucol
- Leukol
- Quinolin
Frequently asked questions
What is quinoline commonly used for?
Quinoline is primarily used as a precursor in the synthesis of pharmaceuticals, agrochemicals, and dyes, as well as in the production of rubber chemicals and corrosion inhibitors.
What is the chemical formula and molecular weight of quinoline?
The chemical formula is **C₉H₇N**, and the molecular weight is **129.16 g/mol**.
How should quinoline be stored?
Store quinoline at **ambient temperature** in a tightly sealed container, away from moisture, heat, and incompatible substances.
What grades of quinoline does Molekula supply?
Molekula supplies **technical grade quinoline** (industrial purity). High-purity or custom grades may be available upon request.
Can Molekula supply quinoline in bulk quantities?
Yes, Molekula can supply quinoline in **bulk quantities** (drums, IBCs, or custom packaging) for industrial and commercial applications.
What documentation comes with a quinoline order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **packing slip** with batch details and hazard warnings.
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.