Define the material
Include the CAS number, chemical name and intended use. Specify an isomer, salt or hydrate form when it is relevant to your process.
The chemical product directory
Gastrointestinal Drug Intermediates
Clarity for your next enquiry.
For gastrointestinal-route materials, define the substitution pattern, chemical form and any stability-related evidence needed for procurement.
Results remain inside their category path so you always know where each material belongs.
Try a search
Industrial packaging
Controlled handling begins with the right container.
Category sourcing guidance
Sourcing Gastrointestinal Drug Intermediates
Pharmaceutical intermediate sourcing begins with the material identity and its intended position in the buyer’s process. Agree the relevant analytical criteria, impurity information and supplier documentation before comparing commercial offers.
For gastrointestinal-route materials, define the substitution pattern, chemical form and any stability-related evidence needed for procurement.
Include in your enquiry
- CAS, structure and any stereochemical or salt-form requirements
- Assay method, impurity criteria and batch documentation required for evaluation
- Development stage, sample quantity, repeat demand and change-notification expectations
239catalogued products
7product families
Identity first. Specifications next.
CAS-led records with supply details confirmed for your enquiry.
01 / Explore the portfolio
A clear path to your material.
Choose a primary category to read its product list, ordered by secondary category.
0 matching products
No search results
No matching products found.
Try searching by product name, CAS RN, alias or category.
Ask our sourcing team →02 / Selected core products
Three materials. More clarity.
Explore three representative materials across synthesis, pharmaceutical intermediates and polymers—with detailed properties, analytical references and application context.
01Heterocyclic building block
Pyrazole
1H-Pyrazole · CAS 288-13-1
CAS RN 288-13-1M.W. 68.08 g/mol
A compact nitrogen heterocycle for organic synthesis and coordination chemistry.
GC / titration · Moisture control
Explore technical profile02Pharmaceutical intermediate
4-AA
Chiral azetidinone · CAS 76855-69-1
CAS RN 76855-69-1M.W. 287.43 g/mol
A stereochemically defined β-lactam building block used in carbapenem intermediate chemistry.
Stereochemistry · Optical rotation
Explore technical profile03Polymer monomer
FDCA
2,5-Furandicarboxylic acid · CAS 3238-40-2
CAS RN 3238-40-2M.W. 156.09 g/mol
A furan-based diacid for PEF and the development of functional polymer materials.
HPLC / titration · Polymer applications
Explore technical profile03 / Better enquiries, clearer decisions
A useful enquiry starts with the right details.
Whether you are evaluating a synthetic building block or planning an industrial purchase, a shared specification helps both teams assess the same material.
Prepare my enquirySet the quality requirements
Share your target assay, test method and limits for critical impurities, water or residual solvents. Attach your specification if available.
Plan the supply request
State the quantity, preferred packaging, destination and required delivery date. Ask for the quotation and supporting documents to be reviewed together.
04 / Sourcing questions
Before you enquire.
How do I find a chemical by CAS number?
Enter the CAS number in the catalogue search. You can also search by English or Chinese name, synonyms or molecular formula where recorded. Open the product detail page to check its identity and category before sending an enquiry.
Does a catalogue listing mean the material is in stock?
A catalogue entry identifies a material within our sourcing portfolio. Availability, price, minimum order quantity, grade and delivery schedule are confirmed for each enquiry. The catalogue does not publish live stock or a fixed commercial offer.
Can I request a COA, SDS or specification?
List the documents required by your team when submitting an enquiry. Ask for the current safety data sheet, a suitable specification and relevant analytical evidence. Document availability and the applicable batch must be confirmed for the proposed supply.
What if I cannot find my product?
Send a sourcing enquiry with the product name, CAS number and target quantity. Include the intended application and any essential quality requirements so that the team can assess your request.