n-Heptane, High Purity Grade, 99% differs from regular heptane in terms of composition (free of other isomers). It is a straight-chain alkane having seven carbons and appears as a colorless liquid with a petroleum-like smell. It is the main constituent of gasoline and used as a standard for the octane rating of fuels.
n-Heptane 99% High Purity Grade, CAS 142-82-5, is the straight chain form of heptane, an alkane built from seven carbons. It’s a colorless liquid with a petroleum like smell, and the assay is at least 99.0 wt %. It differs from regular heptane in composition, because it’s the normal compound rather than a mix of isomers. You’ll find a Safety Data Sheet, a Technical Data Sheet, an Allergen Statement and a BPA Statement in the Product Manuals list. Certificates of Analysis are listed there too, so you can check the paperwork before you order. It’s also used as a standard for the octane rating of fuels.
Most people reach for n-Heptane as a nonpolar solvent, and it’s used in the manufacture of paints and varnishes. The trouble starts when a solvent shows up without the right paperwork, or in a size that doesn’t fit your work, or from a supplier who can’t handle hazmat. Lab Alley fixes that. Documents are available right on the page, sizes run from 500ml up to 55 gallons, and hazmat shipping is handled from start to finish. Here’s the plan. Pick your size, set up Autoship if you reorder often, or ask for a quote on bigger volumes. We’ll keep it on budget, on time, every time. Request a quote and tell us what you need.
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Nonpolar solvent
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Manufacture of paints and varnishes
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Standard for the octane rating of fuels
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Extraction solvent
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General laboratory solvent
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Q: What is n-Heptane 99% High Purity Grade used for?
A: It’s used as a nonpolar solvent and in the manufacture of paints and varnishes. It’s also a standard for the octane rating of fuels.Q: What does High Purity Grade mean, and is it suitable for solvent work?
A: Here it refers to a 99% product with an assay of at least 99.0 wt %. It’s the normal heptane compound, which differs from regular heptane in composition. Check the Technical Data Sheet and a Certificate of Analysis against your own method’s requirements.Q: What sizes are available, and does it ship as hazmat?
A: You can choose 500ml, 1L, 4L, 5Gal, 20L or 55Gal, plus cases of 4 x 1L, 6 x 500ml or 4 x 4L. The Safety and Shipping tab lists it as: DOT: Heptanes, 3, UN1206, PG II.Q: How do I get the SDS and Certificate of Analysis?
A: Open the Product Manuals section on the page to download the Safety Data Sheet. The Certificates of Analysis are listed right beside it.Q: How should it be stored?
A: Follow the storage guidance in the Safety Data Sheet before you stock it. If you’re unsure, call or email customer care and ask for a Heptane Specialist.Q: How is it different from regular heptane?
A: Regular heptane is typically a mix of isomers. This product is n-Heptane, the straight chain compound with seven carbons in a row.Q: Can I set up Autoship?
A: Yes. The page has a subscribe option where you pick how often you want it, from 1 to 12 weeks.
Product Information
| CAS | 142-82-5 |
|---|---|
| Synonyms | n-Heptane, Heptan, Dipropylmethane, Heptyl hydride, Dipropyl methane, Gettysolve-C, Skellysolve C, Heptene, n-Heptan |
| Assay | >/= 99.0 wt % |
| PubChem ID | 8900 |
| Grade | Purified Grade |
| Color | Colorless |
| Physical form | Liquid |
| Appearance | Colorless Liquid |
| Odor | Petroleum Distillates |
| Melting point | -91 °C / -131.8 °F |
| Boiling Point | 98 °C / 208.4 °F |
| Vapor pressure | 48 mbar @ 20 °C |
| Specific gravity | 0.683 |
| Solubility | Insoluble in water |
| Auto-ignition temperature | 223.0 °C / 433.4 °F |
| Molecular formula | C7H16 |
| Molecular weight | 100.2 |
| Autoship Available | Yes |
| Flash Point | -4 °C / 25 °F |
| Pillar | High Purity |
| Sulfur Compounds | </= 1.0 ppm |
| Vapor density | 3.5 |
| Viscosity | 0.64 mm2/s at 20 °C / 68 °F |













