Molekula
n-Heptane HPLC grade
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
n-Heptane HPLC grade is a straight-chain alkane solvent widely used in high-performance liquid chromatography (HPLC) for separating and analyzing compounds, as well as in calibration standards for gas chromatography (GC). Beyond chromatography, it serves as the zero-point reference standard for octane-rating and engine knock testing, and as a solvent for organic synthesis and laboratory reagent preparation. It meets stringent purity requirements for analytical applications, ensuring minimal interference in results. This product has a CAS number of 142-82-5, with the molecular formula CH3(CH2)5CH3 and a molecular weight of 100.20 g/mol. It is classified as a flammable liquid with a signal word of "Danger" and should be stored at ambient conditions in a well-ventilated area, away from ignition sources. Molekula supplies n-Heptane HPLC 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
In stock — same-day dispatch
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 — $209.00 per pack
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 colourless liquid |
| Assay (HPLC) | ⩾ 99.0% |
| Water (KF) | ≤ 100ppm |
| 220nm | ≤ 0.1500 |
| 230nm | ≤ 0.0550 |
| 250nm | ≤ 0.0150 |
| Identification (RAMAN) | Conforms to Reference |
| 212nm Absorbance | ≤ 0.3000 |
| 197nm Absorbance | ≤ 1.0000 |
| UV 400nm | ≤ 0.0100 |
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 | 90033463 |
| 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
-
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Dipropyl methane
- Eptani
- Gettysolve-C
- Heptan
- HEPTANE
- Heptanen
- Heptyl hydride
- n-Heptane
- normal-Heptane
- Skellysolve C
Frequently asked questions
What is n-Heptane HPLC grade used for?
This grade of n-Heptane is primarily used as a high-purity solvent in analytical chemistry, particularly for HPLC (High-Performance Liquid Chromatography), and as a reference standard in laboratory 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 HPLC 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 HPLC grade available?
Molekula supplies **HPLC grade n-Heptane**, which meets stringent purity requirements for analytical applications.
Can Molekula supply n-Heptane HPLC grade in bulk quantities?
Yes, Molekula can supply n-Heptane HPLC grade in bulk, with quantities tailored to your specific needs—please contact us for details.
What documentation comes with an order of n-Heptane HPLC grade?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), 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.