Sulfolane CAS 126-33-0 Industrial / Extraction Grade Sourcing Candidate
Buyer-facing sourcing profile for Sulfolane CAS 126-33-0 from a China-based supplier listing. Key checks should focus on CAS identity, grade confirmation, purity target, water and acidity/alkalinity limits, color and appearance, batch COA availability, export documents, packing compatibility, and dangerous goods classification verification before RFQ or purchase order placement.
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.: 126-33-0Chemical solvent / sulfone compoundCandidate for RFQ after CAS, COA, SDS, grade, impurity, packing, and export classification checks
Application positioning: aromatic extraction, gas desulfurization, petrochemical solvent, fine chemical solvent
Key buyer checks to request: water content, color/APHA, acidity or alkalinity, density, refractive index, sulfur-related impurities, non-volatile residue, and full COA test method references
Who uses this page
Target buyers
Petrochemical solvent buyers
Aromatic extraction plants
Gas treatment and desulfurization chemical buyers
Industrial solvent distributors
Fine chemical manufacturers requiring qualified sulfolane feedstock
Overseas chemical importers needing COA/SDS-backed supply
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 packaging includes 25 L drum, 200 kg drum, and IBC tank options.
Supplier FAQ references 200 L drums and 1000 L IBC with metal frame; confirm actual net weight per package.
Confirm inner material compatibility, drum condition, sealing method, palletization, container loading quantity, and whether export marks can match buyer requirements.
Request photos of current export packing, labels, batch numbers, and pallet/container loading before shipment.
Clarify sample availability, sample size, freight terms, and whether sample COA matches commercial batch specifications.
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
Aromatic hydrocarbon extraction solvent sourcing
Industrial solvent procurement for petrochemical applications
Gas treatment solvent supply evaluation
Fine chemical process solvent qualification
Distributor stock replenishment after CAS and spec verification
How we compare
Sourcing options
Request standard industrial grade quotation with full current COA.
Request extraction grade quotation with tighter impurity and water limits.
Request custom specification review based on buyer-provided impurity limits.
Request trial sample or pre-shipment sample for lab qualification.
Request IBC-based export packing for bulk users or drum packing for smaller-volume buyers.
Request third-party inspection, container loading photos, and retained sample confirmation.
Human review
Compliance notes
Verify CAS No. 126-33-0, product name, formula, and grade against the latest SDS and COA before import.
Request current COA, SDS/MSDS in English, commercial invoice, packing list, bill of lading draft, and certificate of origin where applicable.
Confirm dangerous goods classification, HS code, transport name, UN status if applicable, and marine/air/road transport restrictions with the supplier and freight forwarder before shipment.
Supplier text mentions a hazardous chemicals operating license; request license copy only for due diligence and confirm it covers the offered product and export activity.
No regulatory guarantee should be assumed from the listing; buyer should verify import controls, chemical inventory status, customs requirements, and end-use restrictions in the destination country.
Check whether the product is offered as pure sulfolane or as recovered/recycled material, and whether any stabilizers, additives, or production-route residues are present.
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.
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 batch COA for Sulfolane CAS 126-33-0 showing purity, water, color, acidity/alkalinity, density, and residue?
Is the offered material industrial grade, extraction grade, or another grade, and what specification range is guaranteed in the sales contract?
Is the material virgin production, recovered/refined, or blended stock?
What are the typical impurity limits, especially water, organic impurities, acidity, color, and non-volatile residue?
Which test methods are used for the COA parameters?
What is the available stock quantity, batch size, and production date?
What export packing options are available: 25 L drum, 200 kg drum, 200 L drum, or 1000 L IBC?
Can you provide SDS, COA, invoice, packing list, certificate of origin, and bill of lading draft before shipment?
Checks before quote
Verify CAS No. 126-33-0, product name, formula, and grade against the latest SDS and COA before import.
Request current COA, SDS/MSDS in English, commercial invoice, packing list, bill of lading draft, and certificate of origin where applicable.
Confirm dangerous goods classification, HS code, transport name, UN status if applicable, and marine/air/road transport restrictions with the supplier and freight forwarder before shipment.
Supplier text mentions a hazardous chemicals operating license; request license copy only for due diligence and confirm it covers the offered product and export activity.
No regulatory guarantee should be assumed from the listing; buyer should verify import controls, chemical inventory status, customs requirements, and end-use restrictions in the destination country.
Check whether the product is offered as pure sulfolane or as recovered/recycled material, and whether any stabilizers, additives, or production-route residues are present.
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.
