CCHN ChemicalsChemical export sourcing from ChinaStart RFQ
Modified Trisiloxane Organosilicone Tank-Mix Adjuvant QS-302, CAS 67674-67-3 sourcing visualCandidate for RFQ after CAS, SDS, COA, impurity, packing, and transport-classification verification
Back to sourcing hubAgro & Fertilizer

Modified Trisiloxane Organosilicone Tank-Mix Adjuvant QS-302, CAS 67674-67-3

Supplier-listed agricultural organosilicone surfactant / modified polytrisiloxane spray adjuvant offered as QS-302 with CAS 67674-67-3. Candidate is best evaluated by overseas buyers through CAS confirmation, active content, surface tension, viscosity, cloud point, appearance, water dispersibility, impurity profile, SDS/COA availability, export classification, and packaging suitability for liquid chemical shipment.

Quick buying facts

Identify the grade, package, and import market before comparing suppliers.

Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.

CAS No.: 67674-67-3, to be confirmed against supplier COA, SDS, and import registration needsAgricultural organosilicone surfactant / modified trisiloxane tank-mix adjuvantCandidate for RFQ after CAS, SDS, COA, impurity, packing, and transport-classification verification
Identity and grade

Typical specifications

  • CAS No.: 67674-67-3, to be confirmed against supplier COA, SDS, and import registration needs
  • Model / grade: QS-302 agricultural silicone spray adjuvant
  • Chemical description: modified polytrisiloxane / agricultural silicone surfactant
  • Listed formula: (C2H4O)nC10H28O3Si, buyer should verify against technical dossier
  • Appearance: transparent liquid or light amber liquid
  • Active content / purity: listed as >99% or 99.8%, confirm test method and assay basis
  • Surface tension at 0.1 wt%: 20.0-23.0 mN/m
  • Specific gravity at 25°C: 1.001-1.050 g/cm3, page also lists 1.015 typical
  • Viscosity at 25°C: 20-61 mPa.s, page also lists 30 typical
  • Cloud point: listed as <10°C, with both 0.1 wt% and 1 wt% aqueous solution references requiring clarification
  • CMC: listed as 0.007 wt%, confirm method and batch consistency
  • Pour point: listed as -8°C
Who uses this page

Target buyers

  • Agrochemical formulation companies sourcing silicone adjuvant components
  • Pesticide distributors requiring tank-mix adjuvant supply under local compliance review
  • Agricultural input importers evaluating organosilicone wetting and spreading agents
  • Chemical traders handling surfactants and specialty agrochemical auxiliaries
  • Private-label adjuvant brands requiring export-ready liquid surfactant packaging
Before matching

Documents to check

  • CAS number, grade, assay, and impurity profile
  • SDS, COA, TDS, HS code, and transport classification
  • Destination-market import documents before supplier matching
Package and route

Packing notes

  • Listed packing options include 1 MT IBC container, 200 kg drum, and 25 kg drum.
  • Confirm drum material, inner lining, closure type, palletization, net/gross weight, and container loading plan before ordering.
  • Request photos of export packaging, UN-style markings if applicable, and leakage-prevention measures for liquid shipment.
  • Confirm sample size availability, sample packaging, and whether sample documents match bulk-shipment documents.
  • Ask whether packaging is suitable for sea freight, air freight, or courier sample shipment based on final DG classification.
Applications and sourcing options

Check whether this product fits the buyer's actual application.

Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.

Use context

Common applications

  • Evaluation as an organosilicone surfactant component in agricultural adjuvant portfolios
  • Procurement candidate for tank-mix adjuvant products subject to local registration and label requirements
  • Formulation screening where low surface tension, wetting, spreading, and water dispersibility are key buyer specifications
  • Replacement or second-source qualification for modified trisiloxane surfactant supply
  • Export sourcing project requiring COA, SDS, packing, and transport classification checks
How we compare

Sourcing options

  • Request supplier-direct quotation for QS-302 under CAS 67674-67-3 with current COA and SDS attached.
  • Order a documented sample for identity and performance screening before bulk commitment.
  • Specify buyer-controlled QC limits for active content, viscosity, surface tension, cloud point, appearance, and impurities.
  • Use pre-shipment inspection for first commercial lot, including sampling, packaging check, and document review.
  • Compare with alternative organosilicone adjuvant grades under similar CAS or function, ensuring CAS and specification are not assumed interchangeable.
Human review

Compliance notes

  • Obtain current SDS in GHS format before RFQ finalization and check the flash point, transport classification, hazard pictograms, and environmental hazard statements.
  • Confirm whether the product is shipped as dangerous goods, non-DG chemical, or limited-quantity sample under the supplier's current SDS and carrier assessment.
  • Request batch COA covering appearance, active content, surface tension, viscosity, specific gravity, cloud point, water dispersibility, and any agreed impurity limits.
  • For agricultural end use, confirm whether the buyer's destination market requires adjuvant registration, pesticide co-formulant approval, or formulation-level review.
  • CAS 67674-67-3 should be cross-checked because organosilicone surfactants may be sold under broad commercial descriptions and similar CAS references.
  • Do not rely on marketplace claims for regulatory clearance, crop compatibility, or pesticide performance; request technical documentation and conduct local compliance review.
  • Confirm export documents available: commercial invoice, packing list, COA, SDS, certificate of origin if needed, and transport document details.
  • Check whether REACH, UK REACH, TSCA, DSL/NDSL, AICS/AIIC, K-REACH, or other inventory status is relevant to the destination market.
Buyer search paths

Related sourcing terms

These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.

CAS 67674-67-3modified trisiloxane surfactantorganosilicone adjuvant supplieragricultural silicone surfactanttank mix adjuvant suppliersilicone spray adjuvantpolytrisiloxane adjuvantagrochemical wetting agentagricultural spreading agentQS-302 silicone adjuvantHS code 3402900090
RFQ questions before supplier matching

Turn this product into a quote request.

Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.

Questions to confirm
  • Can you provide a recent COA for QS-302 showing CAS 67674-67-3 and the full tested specification range?
  • Is the listed active content >99% measured by which analytical method, and is it based on non-volatile content, silicone active, or another basis?
  • Please clarify the cloud point specification: is it measured at 0.1 wt% or 1 wt% aqueous solution?
  • What are the routine impurity controls for residual solvents, cyclic siloxanes, moisture, and unreacted raw materials?
  • Can you provide the latest SDS and confirm DG or non-DG transport status for sea and air shipment?
  • What is the exact packing configuration for 25 kg drums, 200 kg drums, and 1 MT IBCs, including net weight, pallet size, and container loading quantity?
  • Are retained samples and third-party pre-shipment inspection available for export orders?
  • Can you support destination-market documentation such as certificate of origin, legalized documents, or inventory-status statement where applicable?
Checks before quote
  • Obtain current SDS in GHS format before RFQ finalization and check the flash point, transport classification, hazard pictograms, and environmental hazard statements.
  • Confirm whether the product is shipped as dangerous goods, non-DG chemical, or limited-quantity sample under the supplier's current SDS and carrier assessment.
  • Request batch COA covering appearance, active content, surface tension, viscosity, specific gravity, cloud point, water dispersibility, and any agreed impurity limits.
  • For agricultural end use, confirm whether the buyer's destination market requires adjuvant registration, pesticide co-formulant approval, or formulation-level review.
  • CAS 67674-67-3 should be cross-checked because organosilicone surfactants may be sold under broad commercial descriptions and similar CAS references.
  • Do not rely on marketplace claims for regulatory clearance, crop compatibility, or pesticide performance; request technical documentation and conduct local compliance review.
  • Confirm export documents available: commercial invoice, packing list, COA, SDS, certificate of origin if needed, and transport document details.
  • Check whether REACH, UK REACH, TSCA, DSL/NDSL, AICS/AIIC, K-REACH, or other inventory status is relevant to the destination market.
Next step

Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.