Custom Synthesis
Tailored synthesis of small molecule organic compounds to meet your exact specifications and timelines.
Chemical intermediates manufacturer & supplier
High-purity chemical intermediates for pharma, agrochemical and fine chemical synthesis
Changzhou Malong Chemicals Co., Ltd. offers a focused product range with CAS-number search, custom synthesis, and reliable global delivery.
Exact CAS number search · 172 Products
What We Offer
Comprehensive Chemical Solutions
Pharmaceutical Intermediates
Drug intermediates and pharmaceutical derivatives for R&D and commercial production.
Specialty Fine Chemicals
Quinolines, pyridines, pyrimidines, benzimidazoles and other heterocyclic building blocks.
Global Supply
Reliable export to pharmaceutical and chemical partners worldwide with responsive support.
Product categories
Browse intermediates by chemical family. Every product page is indexed by CAS number and English chemical name.
39
Quinoline & Isoquinoline Intermediates
Quinoline and isoquinoline derivatives for pharmaceutical intermediates, agrochemical synthesis and liquid cr…
View products 20Pyridine & Pyridine Derivatives
Pyridine and picoline derivatives supplied in high purity for pharmaceutical and agrochemical intermediate pr…
View products 7Pyrimidine Intermediates
Pyrimidine intermediates for pharmaceutical APIs and agrochemical synthesis, available on flexible commercial…
View products 8Benzimidazole Intermediates
Benzimidazole intermediates for pharmaceutical research, production and fine chemical synthesis.
View products 10Indazole & Indole Intermediates
Indazole and indole derivatives for medicinal chemistry, agrochemicals and specialty chemical development.
View products 27Anilines & Aromatic Amines
Aniline and aromatic amine intermediates for dyes, pharmaceuticals, agrochemicals and polymer additives.
View products 30Halogenated Benzene Derivatives
Brominated, chlorinated and iodinated benzene derivatives for cross-coupling and functional group chemistry.
View products 14Benzoic Acids & Esters
Benzoic acids, esters and related aromatic acid intermediates for pharma, agrochemical and fragrance synthesi…
View products 2Benzothiadiazole Intermediates
Benzothiadiazole building blocks for material chemistry, optoelectronics and fine chemical synthesis.
View products 1Thiophene Intermediates
Thiophene intermediates for pharmaceutical and specialty chemical synthesis.
View products 1Nitrile Intermediates
Nitrile intermediates for pharmaceutical and agrochemical building block synthesis.
View products 13Other Aromatic Intermediates
Additional aromatic intermediates, fine chemicals and research building blocks from our production range.
View products
Featured intermediates
A sample from our catalog. The full product list is searchable by exact CAS number.
100189-84-2
2,5-Dibromo-m-xylene
Halogenated Benzene Derivatives 1003-56-12-hydroxy-3-methylpyridine
Pyridine & Pyridine Derivatives 100366-75-42-Iodo-5-trifluoromethylpyridine
Pyridine & Pyridine Derivatives 1003-98-12-Bromo-4-fluoroaniline
Anilines & Aromatic Amines 1006-47-98-iodoquinoline
Quinoline & Isoquinoline Intermediates 101257-89-04-methyl-1H-indazol-5-amine
Other Aromatic Intermediates
Why work with Malong
Focused production range
Research-driven, quality-focused: we combine flexible custom synthesis with a practical catalog of commercially available intermediates.
- A practical catalog of intermediates across pyridine, quinoline, aniline, benzimidazole and related families.
- Every product page is built around its CAS number so buyers can find exact materials quickly.
- Laboratory support in Changzhou and cooperating plants for process optimization, scale-up and production.
- Request a quote by email or WhatsApp directly from any product page.
172Products
12Product families
CASCAS search
R&DCustom synthesis
Ready to discuss your synthesis needs?
Contact our team for quotes, technical data, and custom project inquiries.
Get in TouchFAQ
Common questions
How do I search for a product?
Enter the exact CAS number in the search bar. The site normalizes formatting and opens the matching product page.
Can you supply custom quantities or grades?
Please send an inquiry with product, CAS number, quantity and target specification. Our team will confirm availability and packaging.
What industries use your intermediates?
Our products are used in pharmaceuticals, agrochemicals, liquid crystal materials, fragrances and fine chemical synthesis.
How should I request a quote?
Use the inquiry form on any product page, email info@malongchem.com, or send a WhatsApp message to +86 135 8453 5752.
Do you support custom synthesis?
Yes. We support new product development, process optimization, pilot trials and scale-up production for selected intermediates.