Identity and CAS
Record chemical name, CAS 57-55-6 when that diol is intended, and whether the buyer needs industrial, USP or inhibited fluid. Do not merge this line with olefin propylene (CAS 115-07-1).
Matching console
Propylene glycol supplier answers compared on one field set
Matching work for a propylene glycol supplier starts with concentration, purity, moisture, package type, quantity, US destination and document requests. Propylene Sourcing identifies possible plants and equalizes answers. We do not manufacture, stock or certify the quoted chemical. Industrial, USP and inhibited heat-transfer grades are not interchangeable quotes even when the commercial name looks similar.
- 01Identity and CAS kept off olefin propylene unless that monomer is the item
- 02Assay, moisture and inhibitor left open until a plant answers
- 03Package, UN number and destination compared on one grid
- 04SDS, TDS and CoA asked for the quoted lot only
Normalize glycol fields before any plant is ranked
Each card below is a buyer capture field, not a claimed factory capability. If a respondent proposes another concentration, inhibitor package or water-content limit, place that alternative on a separate line so the original request remains auditable. Matching work also records optional budget currency and whether the target is per kilogram, per drum, per IBC or for the whole order.
Assay and purity
State requested concentration, assay, moisture, density and residual solvent. Leave unknown values marked for supplier confirmation against the exact quoted product.
Package and UN number
Ask for drum, IBC, isotank, net contents, labeling, UN number and DOT or IMDG statements that apply to the quoted concentration and destination.
Documents and samples
Request current SDS, TDS and CoA format for the proposed product. Sample purpose, method and pass or fail criteria stay with the buyer and qualified reviewers.
SDS TDS CoA questions
Documents follow the quoted lot, not a neighboring grade
TSCA, REACH, GMP or ISO statements are verification questions to the proposed supplier. They are not certifications held by this sourcing site. A file for another manufacturer or concentration is not evidence for the quote in hand. Handling and mixing instructions are outside this desk.
| Document | Ask the supplier to confirm |
|---|---|
| Safety data sheet | Revision date, concentration, and that it matches the quoted product |
| Technical data sheet | Assay, moisture, density, pH, viscosity and any inhibitor limits |
| Certificate of analysis | Lot format, test list, and whether a production CoA will match the sample |
| Transport note | UN number and classification for the exact package and destination |
Next step
Send a propylene glycol supplier a brief they can answer on one grid
Include concentration, purity, package, quantity, US destination, timing, and which SDS, TDS, CoA or sample checks remain open. Compare product subtotal, packaging, samples, testing, freight and duties only when each quotation states them. No savings percentage is published.