Molekula
n-Heptane
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
n-Heptane is a straight-chain alkane used as a reference standard in octane rating tests and as a solvent in laboratory and industrial applications. It is a colorless liquid with a characteristic odor. CAS: 142-82-5, Molecular Formula: C7H16, Molecular Weight: 100.20 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies n-Heptane 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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2.5 L — £110.00 per pack ex VAT · £132.00 inc. VAT
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250 mL — £40.00 per pack ex VAT · £48.00 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 | Clear and colourless |
| Density | 686-690kg/m3 (At 15°C) |
| Refractive Index | 13700-138900 (At 20°C) |
| Water | ≤100 mg/kg |
| Identification | Conforms to reference |
| Non-Volatile Matter | ≤1mg (Per 100ml) |
| Aromatics | ≤50mg/kg |
| Benzene | 0 |
| Heptane | ≥99% w |
| Acid Wash Colour | 0 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -4 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odour | Gasoline-like odor |
| Melting Point | -90.55 °C |
| Boiling Point | 98.38 °C |
| Density | 0.6795 g/cm³ at 25 °C |
| Water Solubility | 3.4 mg/L at 25 °C |
| Vapour Pressure | 4.6 kPa at 20 °C |
| Refractive Index | 1.3855 |
| log P (octanol/water) | 4.66 |
Source: PubChem CID 8900 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90028999 |
| CAS Number | 142-82-5 |
| IUPAC Name | heptane |
| EC Number | 205-563-8 |
| Molecular Formula | CH3(CH2)5CH3 |
| Molecular Weight | 100.20 |
| Exact Mass | 100.1252 |
| SMILES | CCCCCCC |
| InChIKey | IMNFDUFMRHMDMM-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3 |
| PubChem CID | 8900 |
| UN Number | UN1206 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29011040 |
| Tariff Code | 2901100000 |
Safety & GHS
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Flammable
GHS02
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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
- H225 Highly flammable liquid and vapour
- H304 May be fatal if swallowed and enters airways
- H315 Causes skin irritation
- H336 May cause drowsiness or dizziness
- H400 Very toxic to aquatic life
- H410 Very toxic 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, 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
- Dipropyl methane
- Eptani
- Gettysolve-C
- Heptan
- HEPTANE
- Heptanen
- Heptyl hydride
- normal-Heptane
- Pentane, ethyl-
- Skellysolve C
Frequently asked questions
What is n-Heptane used for?
n-Heptane is primarily used as a reference standard in octane rating tests for gasoline and as a solvent in chemical laboratories.
What is the chemical formula and molecular weight of n-Heptane?
The formula is CH3(CH2)5CH3 with a molecular weight of 100.20 g/mol.
How should n-Heptane be stored?
Store at ambient temperature, away from ignition sources, in a well-ventilated area.
What grade of n-Heptane does Molekula supply?
Molekula supplies n-Heptane in reagent grade, suitable for laboratory and analytical use.
Can Molekula supply n-Heptane in bulk?
Yes, Molekula can supply n-Heptane in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of n-Heptane?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.