Molekula
n-Heptane ASTM grade
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 ASTM grade is a straight-chain alkanes solvent widely used as a reference fuel in octane rating tests, a cleaning agent for electronics, and a diluent in laboratory applications. This high-purity hydrocarbon meets ASTM D439 specifications for consistent performance. CAS 142-82-5, molecular formula CH3(CH2)5CH3, molecular weight 100.20 g/mol, stored at ambient conditions. Hazard classification: Danger (highly flammable liquid and vapour, may be fatal if swallowed and enters airways, causes skin irritation, may cause drowsiness or dizziness, very toxic to aquatic life with long lasting effects). Molekula supplies n-Heptane ASTM grade 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 |
|---|---|
| Lead (Pb) | ≤ 0.5 mg/l |
| Heptane | ≥ 99.75% |
| Density (15°C) | 687.5 - 688.1 kg/m3 |
| 2,2,4-Trimethylpentane | ≤ 0.10% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -4 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90037934 |
| CAS Number | 142-82-5 |
| Molecular Formula | CH3(CH2)5CH3 |
| Molecular Weight | 100.20 |
| SMILES | CCCCCCC |
| UN Number | UN1206 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29011040 |
| Tariff Code | 2901100000 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
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
No alternate names recorded for this product.
Frequently asked questions
What is n-Heptane ASTM grade commonly used for?
n-Heptane ASTM grade is primarily used as a solvent, fuel reference standard, and in the production of other chemicals. It's also used in calibration of gas chromatographs and as a diluent in analytical applications.
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 ASTM grade be stored?
Store in a tightly sealed container at ambient temperature, away from ignition sources, oxidizing agents, and direct sunlight.
What grade of n-Heptane does Molekula supply, and is ASTM available?
Molekula supplies n-Heptane ASTM grade, meeting the specifications for fuel and solvent applications as defined by ASTM International.
Can Molekula supply n-Heptane ASTM grade in bulk quantities?
Yes, Molekula can supply n-Heptane ASTM grade in bulk, with quantities tailored to your specific requirements—please contact us for details.
What documentation comes with an order of n-Heptane ASTM grade?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a Danger label indicating the Signal Word: Danger. Additional documentation, such as a Certificate of Conformity for ASTM specifications, may be provided upon request.
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