What assay evidence is requested?
Ask for the method behind purity, acid value and moisture. A typical TDS range is not a lot-specific certificate of analysis for the ester that will ship.
Quote alignment
Plasticizer supplier quotation fields we keep on one worksheet
Factory replies for a plasticizer supplier are easy to mis-compare when ester identity, residual alcohol, color APHA, acid value, moisture, viscosity at a stated temperature and package net fill sit in different units. This page lists the fields Plasticizer Sourcing restates so replies can be read side by side. We do not manufacture esters, hold drums or certify extraction or permanence results.
Same-basis steps
Normalize each plasticizer supplier reply before reading the unit price
The steps below are a coordination method, not a claim that plants have been audited, authorized or scored. When a factory proposes an alternative ester, put that line on a second row until the buyer approves the substitution.
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Lock the ester request
Record chemical name and CAS if known, phthalate or non-phthalate family, molecular-weight band, viscosity, density, color, acid value and moisture. Leave a field blank when the buyer wants suppliers to propose. Active content and ionic type stay on the same row as the quoted SKU.
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Name packaging and labels
Ask for drum, IBC or bulk construction, net kilograms, pallet pattern and whether nitrogen blanketing or heat tracing is included. A 200 kg drum and a 20 MT isotank are not the same landed unit until the quote says so.
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Split the cost columns
Product subtotal, packaging, samples, testing, freight, duties and destination charges stay in separate cells. Unit price is not compared until currency, quantity, Incoterm and exclusions match. Optional budget is a planning input, not a published savings figure.
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Hold unverified claims
ISO 9001, REACH status, TSCA statements, GMP language and lead time remain supplier answers for this ester. A brochure permanence or low-temperature flex claim is not a CoA. Alternatives stay pending buyer approval.
Document questions
Files we copy onto every plasticizer supplier RFQ
How is color treated?
If clear flexible compounds are sensitive to APHA or platinum-cobalt color, request the method and the storage statement that will travel with the SDS, not a generic warehouse claim.
When is a sample useful?
Define whether the sample checks identity, viscosity, odor, compatibility or extraction. Pass/fail stays with the buyer laboratory. This desk does not run application trials or write mixing recipes.
What transport notes stay open?
Flash point, UN number and packing group are SDS-driven for the quoted concentration and destination. Final carriage follows carrier rules, not this page.
Request factory quotes on one plasticizer supplier basis
Put CAS if known, viscosity at a stated temperature, pack net kilograms and the US receiving city on the same worksheet so SDS, TDS and CoA gaps are restated before wholesale replies are ranked.
Discuss Product Requirements