Lab Chemicals is an established propylene glycol supplier in India, supplying USP grade propylene glycol (C3H8O2, CAS 57 55 6) from leading propylene glycol manufacturers to pharmaceutical companies, food and beverage producers, cosmetic formulators, and research laboratories across the country. Propylene glycol (1,2-propanediol) is a clear, colourless, practically odourless, water-miscible diol used as a solvent, humectant, carrier, and stabiliser. Our USP grade meets United States Pharmacopoeia testing specifications with assay ≥99.7%, controlled heavy metals, and documented water content and is supplied with Certificate of Analysis and pan-India delivery in HDPE drums, IBC tanks, and bulk formats.
Propylene glycol identified by CAS no 57 55 6 is a synthetic diol belonging to the glycol family. It is produced industrially by hydration of propylene oxide and is fully approved for pharmaceutical, food, and cosmetic use by regulatory bodies including USFDA, EFSA, and FSSAI. Its two hydroxyl (−OH) groups give it complete miscibility with water, strong solvent power for both polar and non-polar compounds, and hygroscopic moisture-retention behaviour that makes it effective as a humectant.
Chemical formula: C3H8O2 | Molar mass: 76.09 g/mol | CAS: 57 55 6
The molecule contains a three-carbon backbone with hydroxyl groups at positions 1 and 2, classifying it as a diol (glycol). This structure is distinct from ethylene glycol (C2H6O2, which is toxic) and dipropylene glycol (a condensation byproduct with different viscosity and molecular weight). The formula c3h8o2 is how buyers and procurement teams commonly search for this compound in chemical databases and procurement systems.
Propylene glycol manufacturers produce this compound at industrial scale primarily through propylene oxide hydration. Major global producers include Dow Chemical, Huntsman Corporation, LyondellBasell, and ADM (for bio-based propylene glycol from glycerol). Indian buyers typically source through authorised distributors who supply from these propylene glycol manufacturers with full pharmacopoeial grade documentation. The key distinction between manufacturers is the grade offered:
|
Grade |
Standard | Suitable for |
| USP / BP / EP | Pharmacopoeial monograph |
Pharmaceutical, food (FCC), cosmetic use |
|
FCC (Food Chemicals Codex) |
FCC monograph | Food and beverage only |
| Industrial / technical grade | No pharmacopoeial standard |
Antifreeze, hydraulic fluids, industrial processes only |
Lab Chemicals supplies USP grade from verified propylene glycol manufacturers with CoA confirming compliance against USP, BP, EP, and FCC specifications.
Propylene glycol USP is used as a carrier solvent in oral liquid formulations, injectable drug products, and topical preparations. It solubilises poorly water-soluble APIs, promotes uniform distribution of active ingredients, and functions as a penetration enhancer and humectant in transdermal and topical systems. For pharmaceutical manufacturers, USP grade with CoA is the minimum documentation requirement. It is commonly used in formulations delivered via plastic disposable syringe where complete API dissolution before fill is critical to dose uniformity.
Approved as food additive E1520 (EU) with GRAS status (USA), propylene glycol functions as a humectant, flavour carrier, emulsifier, and anti-caking agent in food applications. For food manufacturers in India requiring FSSAI-acceptable documentation, see also our range of food grade chemicals for compatible food-contact excipients.
Propylene glycol USP appears as a moisturiser, solvent, and humectant in face creams, body lotions, shampoos, conditioners, deodorants, and oral care products. Its high purity makes it acceptable under EU Cosmetics Regulation 1223/2009, US FDA 21 CFR, and BIS cosmetic standards.
Used as a solvent in chemical reactions, as a carrier fluid in chromatography, and as a co-solvent alongside dimethyl sulfoxide (DMSO) in pharmaceutical and laboratory formulations where broader solubility coverage of hydrophobic compounds is required.
Antifreeze and heat-transfer fluid manufacture, hydraulic and brake fluid formulations, plasticiser and resin production. Note: industrial grade is used for these applications — USP grade is not required.
|
Attribute |
Specification |
|
Appearance |
Clear, colourless, slightly syrupy liquid |
|
Odour |
Practically odourless and tasteless |
| Density |
~1.036 g/cm³ at 20°C |
| Viscosity |
Medium — easy to pump and mix |
| Flash point |
99°C (closed cup) |
|
Handling |
Non-reactive with standard packaging; use gloves and goggles for bulk handling |
|
Packaging |
HDPE drums, IBC tanks, bulk tankers — airtight to prevent moisture absorption |
|
Storage |
Cool, dry, well-ventilated area away from sunlight, oxidisers, and strong acids |
|
Shelf life |
2 years from manufacture date when stored as directed |
Lab Chemicals has been a trusted propylene glycol supplier in India for over three decades, supplying pharmaceutical manufacturers, food companies, cosmetic formulators, and research institutions with USP grade material and full pharmacopoeial documentation. We source from verified propylene glycol manufacturers and supply with CoA confirming compliance with USP, BP, EP, and FCC specifications. Available in HDPE drums, IBC tanks, and bulk formats with pan-India delivery. Our technical team can advise on grade suitability, regulatory documentation for GMP filings, and FSSAI-acceptable specifications for food applications.
Propylene glycol manufacturers produce this compound at industrial scale primarily through propylene oxide hydration. Major global producers include Dow Chemical, Huntsman Corporation, LyondellBasell, and ADM (for bio-based propylene glycol from glycerol). Indian buyers typically source through authorised distributors who supply from these propylene glycol manufacturers with full pharmacopoeial grade documentation. The key distinction between manufacturers is the grade offered:
|
Grade |
Standard | Suitable for |
| USP / BP / EP | Pharmacopoeial monograph |
Pharmaceutical, food (FCC), cosmetic use |
|
FCC (Food Chemicals Codex) |
FCC monograph | Food and beverage only |
| Industrial / technical grade | No pharmacopoeial standard |
Antifreeze, hydraulic fluids, industrial processes only |
Lab Chemicals supplies USP grade from verified propylene glycol manufacturers with CoA confirming compliance against USP, BP, EP, and FCC specifications.
Propylene glycol USP is used as a carrier solvent in oral liquid formulations, injectable drug products, and topical preparations. It solubilises poorly water-soluble APIs, promotes uniform distribution of active ingredients, and functions as a penetration enhancer and humectant in transdermal and topical systems. For pharmaceutical manufacturers, USP grade with CoA is the minimum documentation requirement. It is commonly used in formulations delivered via plastic disposable syringe where complete API dissolution before fill is critical to dose uniformity.
Approved as food additive E1520 (EU) with GRAS status (USA), propylene glycol functions as a humectant, flavour carrier, emulsifier, and anti-caking agent in food applications. For food manufacturers in India requiring FSSAI-acceptable documentation, see also our range of food grade chemicals for compatible food-contact excipients.
Propylene glycol USP appears as a moisturiser, solvent, and humectant in face creams, body lotions, shampoos, conditioners, deodorants, and oral care products. Its high purity makes it acceptable under EU Cosmetics Regulation 1223/2009, US FDA 21 CFR, and BIS cosmetic standards.
Used as a solvent in chemical reactions, as a carrier fluid in chromatography, and as a co-solvent alongside dimethyl sulfoxide (DMSO) in pharmaceutical and laboratory formulations where broader solubility coverage of hydrophobic compounds is required.
Antifreeze and heat-transfer fluid manufacture, hydraulic and brake fluid formulations, plasticiser and resin production. Note: industrial grade is used for these applications — USP grade is not required.
|
Attribute |
Specification |
|
Appearance |
Clear, colourless, slightly syrupy liquid |
|
Odour |
Practically odourless and tasteless |
| Density |
~1.036 g/cm³ at 20°C |
| Viscosity |
Medium — easy to pump and mix |
| Flash point |
99°C (closed cup) |
|
Handling |
Non-reactive with standard packaging; use gloves and goggles for bulk handling |
|
Packaging |
HDPE drums, IBC tanks, bulk tankers — airtight to prevent moisture absorption |
|
Storage |
Cool, dry, well-ventilated area away from sunlight, oxidisers, and strong acids |
|
Shelf life |
2 years from manufacture date when stored as directed |
Lab Chemicals has been a trusted propylene glycol supplier in India for over three decades, supplying pharmaceutical manufacturers, food companies, cosmetic formulators, and research institutions with USP grade material and full pharmacopoeial documentation. We source from verified propylene glycol manufacturers and supply with CoA confirming compliance with USP, BP, EP, and FCC specifications. Available in HDPE drums, IBC tanks, and bulk formats with pan-India delivery. Our technical team can advise on grade suitability, regulatory documentation for GMP filings, and FSSAI-acceptable specifications for food applications.
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