PEG 200 / 400 / 600 / 2000 / 3350 / 4000 / 6000

What is PEG 400?

PEG 400 is polyethylene glycol with an approximate average molecular weight of 400 (380.0 to 420.0 on our technical data sheet), CAS 25322-68-3, a clear water-soluble liquid. Supreme Petro Chemicals is a distributor, not a manufacturer, and supplies PEG 200 to PEG 6000 from Redhills, Chennai.

The number after PEG is the approximate average molecular weight, not a different substance. Every grade from PEG 200 to PEG 6000 shares CAS 25322-68-3 because the product is a mixture of polymer chains of different lengths. Lower numbers are clear viscous liquids; higher numbers are white waxy solids. We hold data sheets for PEG-400 (IP and USP) and PEG-3350 (USP).

PEG grades 200 to 6000 and which have documents

PEG numbers differ by average molecular weight, which sets the physical form: PEG 200 to 600 are liquids and PEG 2000 to 6000 are waxy solids. Our technical data sheets cover PEG-400 (IP / pharmacopoeial and USP) and PEG-3350 (USP) only; other numbers are supplied on enquiry without a data sheet on this page.

Grade to document mapping: IP / pharmacopoeial PEG-400 is covered by SPC-TDS-GLY-008. USP PEG-400 and USP PEG-3350 are covered by SPC-TDS-GLY-022. No technical data sheet or Certificate of Analysis for PEG 200, 600, 2000, 4000 or 6000 is published here, so tell us the number and the standard you need and we confirm the source on enquiry.

Technical grade is not food grade or pharma grade. We do not claim food-grade or cosmetic-grade PEG on this page, and we do not claim BP, Ph. Eur. or NF compliance, because none of those is stated on our data sheets. Where a pharmacopoeial grade matters, ask for the matching data sheet and the batch Certificate of Analysis.

What are the IP and USP specifications of PEG 400 and PEG 3350?

PEG-400 IP data sheet SPC-TDS-GLY-008 gives hydroxyl value 265.0 to 295.0 mg KOH/g, average molecular weight 380.0 to 420.0, moisture 0.20% max and free ethylene oxide 10.0 ppm max. The USP data sheet SPC-TDS-GLY-022 adds assay and MEG plus DEG limits and also covers PEG-3350.

Do not mix numbers across standards. Moisture is 0.20% max on the PEG-400 IP sheet but 1.0% max on the PEG-3350 USP line, and free ethylene oxide is 10 ppm max for PEG-400 but 1 ppm max for PEG-3350. Each cell carries the limit from its own data sheet; Not listed means that data sheet does not state the parameter. On a phone, scroll the table sideways.

General knowledge: free ethylene oxide and 1,4-dioxane are limited because they are residues linked to how polyethylene glycol is produced, and MEG plus DEG (mono and diethylene glycol) are limited because they are related glycol impurities. The limits themselves are the data-sheet values in the table.

Source basis: the values come from the producer's Certificate of Analysis, with the producer named on the downloadable data sheet. They are typical data-sheet limits for the sheets listed, and do not apply to other PEG numbers. The batch Certificate of Analysis supplied with every delivery carries the actual result for that batch.

What are the physical properties of PEG 400?

Per our SDS, PEG 400 melts at about 4 to 8 C, has a flash point above about 180 C and a relative density of about 1.12 to 1.13 g/cm3 at 20 C. These are approximate safety-data-sheet values, not specification limits.

The SDS viscosity of about 90 to 110 cSt at 20 C and the data-sheet viscosity of 7.00 to 8.00 cSt at 98.9 C describe the same material at two different temperatures, so they do not conflict. General knowledge: viscosity falls sharply as PEG is heated.

What is PEG 400 used for?

We supply PEG as chemicals for pharmaceutical formulation manufacturers (IP and USP data sheets), and our SDS lists intended use in formulations, cosmetics, pharmaceuticals, lubricants, polymers and process applications for industrial and professional users.

Industry pages on this site list PEG under Pharma and under Perfumery and Cosmetics. Cosmetic use here describes an application area only; it is not a claim of cosmetic-grade material, because no cosmetic-grade data sheet is on file. We are in Chennai and supply across South India.

• Chemicals for pharmaceutical formulation manufacturers: PEG-400 IP / pharmacopoeial and USP, and PEG-3350 USP, each against its data sheet.
• Chemicals for formulation and cosmetics manufacturers: the SDS intended-use statement covers formulations and cosmetics for industrial and professional use.
• Lubricant, polymer and process applications: listed in the SDS intended-use statement.
• General knowledge: low-molecular-weight liquid PEG is widely used as a water-miscible solvent, carrier and humectant, while the waxy solid numbers are used where a solid, water-soluble base or binder is needed. Confirm suitability for your product and regulatory status yourself.

How is PEG supplied, and from where?

Liquid numbers (PEG 200 to 600) are listed in HDPE drums or barrels and IBCs; solid numbers (PEG 3350 to 6000) in HDPE bags and woven sacks. Exact pack sizes are confirmed when you enquire. We supply from our Redhills warehouse in Chennai, with dispatch across South India.

Pack, grade and order size are confirmed when you enquire. The technical data sheet itself says only HDPE drums for PEG-400, so state the pack you need in your enquiry and we will confirm it.

• Liquid numbers (PEG 200, 400, 600): HDPE drums or barrels, and IBC; size confirmed on enquiry.
• Solid numbers (PEG 3350, 4000, 6000): HDPE bag; woven sack; size confirmed on enquiry.
• PEG 2000: pack to be confirmed on enquiry.
• Head office in Periyamet, Chennai; warehouse in Redhills, Chennai.

Which documents come with PEG 400?

You can download two technical data sheets (IP / standard grade and USP grade) and seven safety data sheets (PEG 200, 400, 600, 2000, 3350, 4000 and 6000) from this page. A batch Certificate of Analysis is supplied with every delivery.

A technical data sheet states the limits a grade is supplied against. A Certificate of Analysis is the measured result for one batch. Check the batch CoA against the data sheet limits before you accept material into your process.

• TDS, IP / standard grade: SPC-TDS-GLY-008 (PEG-400).
• TDS, USP grade: SPC-TDS-GLY-022 (PEG-400 and PEG-3350).
• SDS: one for each of PEG 200, 400, 600, 2000, 3350, 4000 and 6000 (Rev 3.1 for PEG 400).
• Batch Certificate of Analysis supplied with every delivery.

Is PEG 400 hazardous, and how do I store it?

PEG 400 is not classified as hazardous under GHS in our SDS and is not regulated for road, sea or air transport. It is hygroscopic: keep it tightly closed in a cool, dry place. Shelf life is 24 months from manufacture.

Molten material, such as heated solid grades, can cause thermal burns. The SDS shows no pictogram and no hazard statements, and lists precautionary statements P260, P271, P273, P280, P304+P340, P305+P351+P338, P312, P403+P235 and P501. First aid, firefighting and spill details are in the SDS; read it before handling.

• Storage: cool, dry, well-ventilated area, original tightly closed containers; hygroscopic.
• Incompatible with strong oxidisers, concentrated acids and halogens; otherwise stable.
• Liquid spills are a slipping hazard; collect with inert absorbent. Prevent entry to drains and watercourses.
• Eye contact: rinse with water for at least 15 minutes and seek medical attention (SDS section 4).
• Marine pollutant: No (SDS section 14).

What are the transport and regulatory details for PEG 400?

PEG 400 is not classified as dangerous goods, has no UN number requirement (not regulated by road, sea or air), and is not a marine pollutant per our SDS. We confirm the customs tariff heading and applicable tax rate on your quote.

Check the tariff heading and tax treatment for your invoice against the current schedule with your accountant or customs adviser.

The only pharmacopoeial labels we use are the ones on our data sheets: IP / pharmacopoeial for the PEG-400 sheet and USP for the second sheet.

How does PEG 400 compare with propylene glycol and glycerine?

PEG 400 is a polymer of ethylene oxide, while propylene glycol and glycerine are small single molecules. They are different chemicals, so they are not interchangeable without checking your own formulation and regulatory needs.

Macrogol is recorded in our product record as an alternative name for polyethylene glycol. General knowledge: the PEG number sets liquid versus solid form, with lower numbers liquid and higher numbers waxy solids. Match the grade and standard you need, not just the name.

See our pages for propylene glycol and glycerine if you are comparing solvents or carriers, and use the data sheets, not this table, to set a specification.

How do I get a PEG 400 quote?

Send the PEG number, the grade (IP or USP), the quantity, the pack and your delivery location. We quote within 4 working hours, and a batch Certificate of Analysis is supplied with every delivery.

1. Name the PEG number you need, for example PEG 400, PEG 600 or PEG 6000.
2. State the grade and standard: IP / pharmacopoeial or USP, or tell us the application so we can point you to the right data sheet.
3. Give the quantity and the pack you prefer (drum, IBC, bag or sack).
4. Tell us the delivery location so we can plan dispatch from Redhills, Chennai.
5. Call or WhatsApp +91 86087 80096 or use the enquiry form; we quote within 4 working hours.