Propanil Formulations for Rice Markets: EC, SC, WG and Mixture Buyer Guide

Propanil formulations for rice markets vary by loading, formulation and mixture design. A buyer comparing EC, SC and WG supply must first confirm the exact declaration basis, physical specification and destination label, then check crop selectivity, resistance language, residue obligations, packaging and batch documents. This guide provides a structured review for the Averstar configurations.

Buyer summary: compare the registered finished products—EC, SC, WG or propanil plus cyhalofop-butyl—rather than treating every propanil offer as the same commodity.

Propanil formulations in the current range

Averstar lists Propanil 34% / 45% EC, Propanil 450g/L SC and Propanil 80% WG. It also lists Propanil + Cyhalofop-Butyl 30% / 10% EC. The straight products differ in concentration and physical form; the mixture adds a second active ingredient and needs a separate regulatory and resistance-management review.

EC, SC and WG change the procurement specification

EC is a liquid concentrate that forms an emulsion after dilution; SC is a suspension of fine solid particles in liquid; WG is a dry granule that disintegrates and disperses in water. Those differences affect pack material, freight, user handling and quality tests. An EC review emphasizes emulsion stability and relevant safety properties, an SC review emphasizes suspensibility and re-dispersion, and a WG review emphasizes wetting, disintegration and dust control.

The 34% and 45% EC options and the 450g/L SC use different concentration expressions. Ask for the basis and exact density before converting between mass percentage and grams per litre. The 80% WG is a high-load dry format, so a price-per-kilogram comparison with liquid offers can be misleading unless active delivery, packaging and freight are normalized.

HRAC classification and destination-label review

The Herbicide Resistance Action Committee classifies propanil as an amide in HRAC/WSSA Group 5, inhibition of photosynthesis at photosystem II. That classification helps buyers check active identity and resistance-management information. It does not establish an approved rice variety, weed spectrum, timing, rate or water-management instruction; only the current destination label and local advisers can do that.

The propanil and cyhalofop-butyl EC contains active ingredients from different mode-of-action groups. Confirm that both actives and the finished mixture are registered for the intended market, and review the exact label restrictions. Mixture status, crop selectivity and residue obligations cannot be inferred from registrations for the straight components.

Rice-market questions for importer due diligence

• Which rice production system, varieties and weed claims appear on the registered destination label?
• What water-management, timing, crop-stage and compatibility restrictions must be carried into the local label?
• Which residue limits apply in the destination market and in any onward rice export market?
• Is the offered pack size accepted for the intended professional or distribution channel?
• What stewardship support exists for resistance management and correct product identification?

Procurement staff should record these label facts without turning the RFQ into agronomic advice. If the importer sells into several countries, maintain a separate decision file for each destination instead of reusing one label summary across markets.

Quality documents and formulation tests

A comparable quotation needs a comparable document set. Ask every shortlisted supplier for the proposed specification, a recent certificate of analysis, the safety data sheet, the destination or reference label, packaging details, manufacturing-site identity and the version date of each document. The FAO/WHO pesticide specifications framework explains why a specification can serve as a quality reference in trade, but a published FAO/WHO specification is not a substitute for the specification and registration of the product being purchased.

• Product specification with test methods, limits and revision date.
• Recent batch certificate of analysis tied to the same formulation and manufacturing site.
• Safety data sheet and proposed label for the destination market.
• Primary pack, closure, induction seal, carton configuration and pallet plan.
• Registration-support documents and a written list of items that are available, pending or excluded.

For EC, request the registered limits and methods for emulsion stability, water content and storage-related properties. For SC, request suspensibility, particle-size behaviour, pourability and re-dispersion evidence. For WG, request wettability, disintegration, suspensibility, wet-sieve residue, attrition or dust and moisture-related stability. Match every result to the offered loading and manufacturing site.

Packaging, samples and landed cost

EC and SC products need compatible sealed liquid packaging; WG requires moisture-resistant packaging. Confirm inner pack material, closure, seal, carton count, pallet pattern and storage limits. Normalize active content and pack configuration before comparing freight. A lower price per litre or kilogram can disappear when different loadings, carton efficiency, dangerous-goods requirements or remaining shelf life are included.

When a sample is requested, record the batch number, formulation version and specification revision that the sample represents. A laboratory or pilot sample does not prove that later commercial shipments will match it. Put the agreed specification in the contract, require a batch-specific certificate of analysis and define the procedure for retained samples and discrepancy handling before the first shipment.

RFQ checklist for propanil formulations

• Exact straight or mixed product, loading, concentration basis and formulation code.
• Destination market, rice label scope, registration route and required languages.
• Formulation-specific specification, recent COA, SDS and reference label.
• Retail or bulk pack, closure, carton, pallet and private-label artwork needs.
• Quantity, Incoterm, destination port, sample purpose and delivery schedule.

Compare propanil supply with one evidence template

A reliable propanil sourcing decision aligns product identity, destination registration, physical quality, pack configuration and batch evidence. Use the linked product pages to identify the exact EC, SC, WG or mixture needed, then issue the same checklist to each supplier. For related guidance, see the rice-herbicide cyhalofop-butyl guide and the herbicide import-document checklist.

This article is a sourcing and document-review guide. It does not recommend crops, pests, application rates, tank mixes, pre-harvest intervals or worker-protection instructions. Those directions must come from the current registered label and competent advisers in the destination market.