Buyer Fit
- Overseas importers and distributors
- Manufacturers, formulators, trading companies, and ingredient buyers
- Human-reviewed RFQ before supplier matching
Back to homeFine chemicals, excipients, intermediates, and custom-spec sourcing
Pharma Intermediates and Fine Chemicals sourcing from China
Buyer-facing pages for fine chemical and pharma-related sourcing where batch traceability, impurity profile, and human review matter more than public catalog claims.
Importer need
Clarify whether the purchase is for excipient, nutraceutical ingredient, fine chemical, or intermediate, then define purity, assay, residual solvents, and document depth.
Product options stay organized around quote readiness: CAS number, grade, assay, application, package, documents, quantity, and delivery destination.
Subcategory map
Choose a subcategory before asking factories for quotes.
Each subcategory maps to real buyer search terms and RFQ details: CAS number, grade, purity, package style, MOQ, samples, documents, and export packing.
Fine chemical intermediatesGeneral fine-chemical intermediate sourcing with impurity profile and human review before quotation.
2-aminopyridine2-aminopyridine supplier China2-aminopyridine COA SDS2-aminopyridine export grade4-aminophenol
Pharma and nutraceutical ingredientsIngredient sourcing with grade separation, traceability, and intended-use clarity before supplier matching.allantoin USPallantoin USP supplier Chinaallantoin USP COA SDSallantoin USP export gradeglucosamine HCl
Excipients and solventsExcipients and fine solvents sourced with document depth and liquid package review.microcrystalline cellulose MCCmicrocrystalline cellulose MCC supplier Chinamicrocrystalline cellulose MCC COA SDSmicrocrystalline cellulose MCC export gradepovidone K30
Custom specification materialsBuyer-specific spec sourcing where assay, impurity, and retained-sample expectations are set up front.battery grade lithium carbonatebattery grade lithium carbonate supplier Chinabattery grade lithium carbonate COA SDSbattery grade lithium carbonate export gradebattery grade lithium hydroxide
Small-volume high-value sourcingLow-volume, higher-value material sourcing with tighter communication, traceability, and commercial review.biotinbiotin supplier Chinabiotin COA SDSbiotin export gradefolic acid
Documents
- Batch traceability, assay, related substances, residual solvent, and moisture profile
- Human review for controlled, restricted, or market-sensitive intermediates
- COA, SDS, DMF-related support only where supplier scope clearly allows it
Packing / Logistics
- Drum, IBC, bag, carton, pallet, label, and container loading
- MOQ, lead time, samples, DG marks, and warehouse inspection
Export Questions
- What is the intended use: intermediate, excipient, nutraceutical, or industrial fine chemical?
- Which pharmacopoeia, impurity, residual solvent, or microbiology limits apply?
- What document scope is required before sample or commercial shipment?
Product options
Representative options for quote preparation.
Each product page summarizes specifications, use cases, packaging checks, related search terms, and questions a buyer should confirm before supplier comparison.
Candidate for RFQ after CAS, COA, SDS, grade, impurity, packing, and export classification checksCustom SpecRFQ
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.
Chemical solvent / sulfone compound
CAS No.: 126-33-0Molecular formula: C4H8O2SEINECS: 204-783-1
Candidate suitable for industrial carbide sourcing page after grade, composition, tolerance, and export document verificationCustom SpecRFQ
Solid Tungsten Carbide Rods 300–330 mm, WC-Co Cemented Carbide Grades
Buyer-facing sourcing candidate for solid cemented tungsten carbide rods made from WC-Co material, offered in common grades such as K10, K20, K30, K40, YL10.2, YG6, YG8, YU06, and YU12. Suitable RFQ focus includes diameter and length tolerance, cobalt percentage, grain size, hardness, TRS, density, surface finish, packing method, export documents, and HS code confirmation. This item is better treated as an industrial carbide tooling raw material rather than a fine chemical.
Industrial tungsten carbide rod / cemented carbide tooling blank
Material: tungsten carbide with cobalt binder, commonly described as WC-Co cemented carbideReported cobalt content range: 3% to 30% depending on grade; specific grade must be confirmed by COA or material certificateCommon grades mentioned: K10, K20, K30, K40, YL10.2, YG6, YG8, YU06, YU12, YF06, YH6F, YC40T, YL15, YL50
Candidate for RFQ with CAS, grade, impurity, packing, and export document verificationCustom SpecRFQ
Gluconic Acid 50% Solution CAS 526-95-4 for Food, Industrial Cleaning and Water Treatment Sourcing
Buyer-facing sourcing profile for Gluconic Acid 50% solution, CAS 526-95-4, offered as food grade or industrial grade liquid. Suitable RFQs should confirm assay/concentration, color, acidity profile, heavy metals or food-grade impurity limits, applicable COA/SDS documentation, drum or IBC packing, HS code, shelf life, and export/DG classification before purchase.
Organic acid aqueous solution / acidity regulator / chelating agent
CAS No.: 526-95-4EINECS No.: 208-401-4Molecular formula: C6H12O7
Ready for RFQ-focused sourcing pageCustom SpecRFQ
Sodium Silicate Liquid (Water Glass) CAS 1344-09-8, Industrial Grade, Adjustable Molar Ratio 2.0–3.5
Buyer-facing sourcing profile for industrial grade sodium silicate liquid, CAS 1344-09-8, offered with adjustable molar ratio and total solids/content range for overseas procurement review. Suitable RFQs should confirm CAS/EINECS alignment, Na2O/SiO2 ratio, total content, density/viscosity, impurity limits, COA format, packing choice, and export documentation before order placement.
Inorganic salt / silicate solution / sodium silicate liquid
CAS No.: 1344-09-8EINECS: 215-687-4Formula listed: Na2O·nSiO2
Non-chemical candidate; suitable only for construction materials sourcing, not chemical catalog onboardingCustom SpecRFQ
Custom Specification Galvanized or PVC-Coated Chain Link Security Fence
Non-chemical construction and perimeter security product candidate from a China supplier. Buyer checks should focus on wire diameter, mesh opening, fence height, coating type and thickness, post and rail dimensions, packing method, HS code confirmation, export documents, and project drawings before RFQ.
Construction wire mesh / perimeter security fence, not a chemical product
Material: low-carbon iron wire or galvanized steel componentsFence height: stated range 4 ft to 15 ft; confirm exact project height toleranceWire diameter: stated 2-5 mm; confirm gauge, diameter tolerance, and measurement after coating
Non-chemical sourcing candidate; suitable only as an industrial component listing after category correctionCustom SpecRFQ
Custom Stainless Steel Non-Standard Stamping and Casting Parts
OEM/ODM stainless steel and metal fabricated parts offered to buyer drawings or samples, with configurable material grade, thickness, surface finish, tolerance, packing, and inspection documentation. This item is a mechanical component rather than a chemical product; CAS number, assay, concentration, and chemical impurity specifications are not applicable except for coating or plating material declarations requested by the buyer.
Custom metal fabrication component / non-chemical industrial part
Material options stated: stainless steel, brass, carbon steel; stainless steel grade noted as 400 series on source pageProcessing options stated: cold stamping, shaping, bending, punching, mould-building, sheet metal fabrication, CNC machining, laser cutting, weldingTolerance stated on source page: 0.02 mm; buyer should confirm drawing-level tolerance table and inspection method
Reject - Non-Chemical ProductCustom SpecRFQ
Air Jet Loom HF-710 Machinery Listing - Not a Chemical Product Candidate
This source listing describes an HF-710 air jet loom for textile weaving, not a chemical substance or chemical raw material. It does not provide CAS number, chemical grade, concentration, impurity profile, SDS, COA, DG classification, or export-control data required for a CHN Chemicals product page. The item may be useful only as an exclusion record or supplier-category mismatch during chemical sourcing review.
Textile machinery / air jet loom - non-chemical item
CAS number: Not applicable; listing is for machinery, not a chemical substanceChemical grade or assay: Not applicableConcentration: Not applicable
Non-chemical industrial machinery candidate; suitable only if catalog supports equipment sourcingCustom SpecRFQ
A4 Copy Paper Production Line / Paper Making Machine
Export-oriented A4/cultural paper production line candidate from China, covering pulp preparation, glue coating, paper forming, drying, calendering, rewinding, and cutting sections. This is industrial paper machinery rather than a chemical product; buyers should verify machine configuration, output paper grade, capacity basis, destination-market import requirements, and technical documentation before RFQ.
Industrial paper making machinery, not a chemical substance
Application: A4 copy paper / cultural paper productionOutput paper weight: 70-80 gsm as listedNet paper width: 1600 mm listed; other listing section references 1800 mm and should be clarified
Low-fit chemical page candidate; suitable only as a textile material sourcing reference with compliance-document checksCustom SpecRFQ
100% Polyester Taffeta / Twill Lining Fabric, Custom Dyed or Coated, Vietnam Sourcing Reference
This source describes a make-to-order 100% polyester woven lining or taffeta fabric, not a chemical substance. It may be relevant only where overseas buyers are sourcing textile substrates with specified coatings or finishing treatments such as PA/PU coating, waterproof finish, flame-retardant option, UV finish, silver coating, or printed designs. For a chemical sourcing page, the key buyer check is that no CAS number, chemical assay, purity, or impurity profile is provided; buyers should treat it as a finished textile material inquiry rather than a commodity chemical RFQ.
Finished textile material / coated polyester fabric; not a standalone chemical product
Material: 100% polyester fabric as listed by sourceConstruction: woven; plain style / taffeta / twill lining referenceYarn count: 63D x 63D as listed
Compliance Focus
- Batch traceability, assay, related substances, residual solvent, and moisture profile
- Human review for controlled, restricted, or market-sensitive intermediates
- COA, SDS, DMF-related support only where supplier scope clearly allows it
RFQ Questions
- What is the intended use: intermediate, excipient, nutraceutical, or industrial fine chemical?
- Which pharmacopoeia, impurity, residual solvent, or microbiology limits apply?
- What document scope is required before sample or commercial shipment?