Propylene glycol, also known as 1,2-propanediol, is a odorless, tasteless, colorless, viscous liquid at room temperature. USP, FCC, and NF monograms are all regulated under the United States Pharmacopeia. The USP and FCC designations signify that the chemical is suitable for pharmaceuticals and food use, whereas the NF contains monograms for excipients.
Propylene Glycol, CAS 57-55-6, is supplied here as a liquid with a minimum assay of 99.5%. The grade is USP/NF/FCC (Food), so it’s suitable for pharmaceutical and food use. At room temperature it’s a colorless, odorless, tasteless, viscous liquid. The page shows Kosher and Halal certification, a GMO Free badge, and a GRAS reference citation of 21CFR 184.1666. You’ll find the paperwork right on the product page. That includes the Safety Data Sheet, the Technical Data Sheet, Certificates of Analysis by lot, and the Kosher and Halal certification files. Supporting statements are listed too, such as Allergen, Food Grade, GRAS, GMO Free and Elemental Impurities.
Propylene glycol shows up in polymer production, antifreeze, cosmetics, food additive use, flavor and pharmaceutical carrier solvents, emulsifying, emollient roles, and artificial smoke or fog. So where do buyers get stuck? Usually it’s missing paperwork, or a supplier who can’t offer the size you need. Lab Alley closes both gaps. The SDS, TDS and COAs are online on this page, and sizes run from 500ml up to 275Gal, with cases and pallets too. The Safety and Shipping tab says “Not DOT regulated.” Here’s the simple plan. Choose a size, or set up Autoship for repeat orders. We keep it on budget, on time, every time. Need larger volumes? Request a quote.
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Polymer production
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Antifreeze
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Cosmetics
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Food additive
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Carrier solvent for flavors and pharmaceuticals
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Emulsifier
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Emollient
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Artificial smoke and fog
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Q: What is Propylene Glycol 99.5% USP/NF/FCC/Food Grade, Kosher, Halal used for?
A: It’s used in polymer production, antifreeze, cosmetics, and as a food additive. It also works as a carrier solvent for flavors and pharmaceuticals, as an emulsifier and emollient, and for artificial smoke or fog.Q: What does USP/NF/FCC (Food) Grade mean, and is it suitable for food and pharmaceutical use?
A: The page describes the USP and FCC designations as suitable for pharmaceuticals and food use. NF covers excipients.Q: What sizes are available, and does it ship as hazmat?
A: Sizes include 500ml, 1L, 4L, 1Gal, 5Gal, 55Gal and 275Gal, plus cases and pallets. The Safety and Shipping tab says “Not DOT regulated.”Q: How do I get the SDS and Certificate of Analysis?
A: The SDS and Technical Data Sheet are in the Product Manuals list on this page, and lot COAs are in the Certificates of Analysis list. If you can’t find what you need, contact Lab Alley customer care.Q: How should it be stored?
A: Our How to Store Propylene Glycol post covers storage in detail. Check the SDS for handling information too.Q: What are the CAS number and assay?
A: The CAS number is 57-55-6, and the assay is a minimum of 99.5%.Q: Is it Kosher and Halal certified?
A: The page shows Kosher and Halal badges. Both certification files are in the Product Manuals list.Q: Does it have a GRAS reference?
A: The Safety and Shipping tab lists a GRAS reference citation of 21CFR 184.1666. A GRAS document is also in the Product Manuals list.
Product Information
| CAS | 57-55-6 |
|---|---|
| Synonyms | 1,2-propanediol, Propane-1,2-diol, 1,2-Propylene glycol, 1,2-dihydroxypropane, 2-Hydroxypropanol, Methylethyl glycol, Methylethylene glycol, Isopropylene glycol, Monopropylene glycol |
| Assay | Min. 99.5% |
| PubChem ID | 1030 |
| Grade | USP/NF/FCC (Food) Grade |
| Color | Colorless |
| Physical form | Liquid |
| Appearance | Clear Liquid |
| Odor | Odorless |
| pH | 7 at 20 - 25 °C (68 - 77 °F) |
| Melting point | -60 - -20 °C (-76 - -4 °F) |
| Boiling Point | 184 - 188 °C (363 - 370 °F) |
| Vapor pressure | < 0.225 mmHg at 25 °C (77 °F) |
| Specific gravity | 1.035-1.037 at 25 °C |
| Density | 1.03 - 1.04 at 20 - 25 °C (68 - 77 °F) |
| Solubility | Soluble |
| Auto-ignition temperature | 371 - 400 °C |
| Molecular formula | C3H8O2 |
| Molecular weight | 76.1 |
| Acidity as Acetic Acid | Max 0.002 |
| Autoship Available | Yes |
| Chloride (Cl) | 0.007% |
| Diethylene Glycol | Max 0.008 |
| Flash Point | 103 °C (217 °F) |
| Heavy metals | 5 ppm |
| Iron (Fe) | Max 0.5 |
| KosherID | ZCF-HSLM |
| Pillar | Natural |
| Refractive Index | 1.4310 - 1.4330 |
| Residual solvents | To pass test |
| Sulfate (SO4) | 0.006% |
| Suspended matter | To pass test |
| Vapor density | < 2.62 at 15 - 32 °C (59 - 90 °F) |
| Viscosity | 42.1 mm2/s @ 25 °C (77 °F) |
| Water | 0.20% |
