Molekula
n-Heptane 99%
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 (CAS 142-82-5) is a straight-chain aliphatic hydrocarbon (CH₃(CH₂)₅CH₃) primarily used as a solvent, reference fuel in octane rating tests, and in calibration mixtures for chromatography. It serves as a non-polar solvent for oils, fats, and resins, and is critical in analytical chemistry for standardizing equipment. Catalogue details: 99% purity, molecular weight 100.20 g/mol, stored at ambient conditions. Hazard classification includes a **Danger** signal word due to high flammability and aspiration risk. Molekula supplies n-Heptane 99% 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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2.5L — $294.50 per pack
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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 colourless liquid |
| Water | ≤ 100 ppm |
| Purity | ≥ 99.0% |
| Benzene | ≤ 1 ppm |
| Colour (Saybolt) | ≥ 30 |
| Total aromatics content | ≤ 5 ppm |
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 | 90038400 |
| 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 99% commonly used for?
n-Heptane 99% is primarily used as a nonpolar solvent for cleaning, extraction, and as a reference fuel in octane rating tests.
What is the chemical formula and molecular weight of n-Heptane?
The chemical formula is **CH₃(CH₂)₅CH₃** and the molecular weight is **100.20 g/mol**.
How should n-Heptane 99% be stored?
Store at **ambient temperature** in a tightly sealed container, away from ignition sources and oxidizing agents.
What grades of n-Heptane does Molekula supply?
Molekula supplies **n-Heptane at 99% purity**—contact us for availability of other grades.
Can Molekula supply n-Heptane 99% in bulk quantities?
Yes, we offer **bulk quantities** of n-Heptane 99%—please inquire for specific packaging options and minimum order quantities.
What documentation comes with an order of n-Heptane 99%?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a **Material Safety Information** document.
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.