Chem4s Chemicals focuses on the R&D of medical intermediates, fine chemical products and the concerned marketing business in HangZhou. Chem4s have successfully exploited many products with our advanced technology and rich experience in R&D, such as chiral, indole & indazole, pyridine, piperidine and pyrimidine derivatives.
Pharmaceutical Raw Materials & intermediates Salicylate Derivatives
Chiral Compound
Indole & Indazole Derivatives
Special chemicals
Nutritional

Enclosed update our product list FYI.
APIs
Agmatine sulfate CAS:2482-00-0
Ciprofibrate CAS:52214-84-3

Salicylate
Calcium acetylsalicylate CAS:69-46-5
Salicylanilide CAS:87-17-2
Phenyl salicylate CAS:118-55-8

Nutritional Ingredients and Amino acid
Luteolin CAS:491-70-3
2-Aminoisobutyric acid CAS:62-57-7
6-methylquinoxaline CAS:6344-72-5
Phloroglucinol CAS:108-73-6
L-Theanine CAS:3081-61-6
5-methoxyindoline
5-methoxytryptamine CAS:608-07-1
5-methoxytryptamine HCl
Chrysin

Chiral compound
(S)-2-Methylpiperazine CAS:74879-18-8
(R)-2-Methylpiperazine CAS:75336-86-6
(S)-2-Methylpiperazine-D-Tartrate CAS:126458-15-9
(1R,2R)-(+)1,2-Diphenylethylenediamine CAS:35132-20-8
(1S,2S)-(-)1,2-Diphenylethylenediamine CAS:29841-69-8
(1S,2R)-(+)-2-Amino-1,2-diphenylethanol CAS:23364-44-5
(1R,2S)-(-)-2-Amino-1,2-diphenylethanol CAS:23190-16-1
D-tryptophan CAS:153-94-6
L-tryptophan CAS:73-22-3

Intermediates of pharmceuticals
4-hydroxy-3-methylacetophenone CAS:876-02-8
3,4-Dihydroxy-alfa-chloroacetophenone CAS:99-40-1
3-Bromo-4-hydroxy-5-methoxybenzaldehyde CAS:2973-76-4
3-bromo-4,5-dimethoxybenzaldehyde CAS:6948-30-7
3-Bromo-4,5-dimethoxybenzoic acid CAS:20731-48-0
3-Hydroxy-4,5-dimethoxybenzoic acid CAS:1916-08-1
3,4-Dimehtoxy-5-hydroxybenzoicd acid methylesler CAS:83011-43-2
4-Hydroxy-3-nitroacetophenone CAS:6322-56-1
4-Benzyloxy-3-nitroacetophenone CAS:14347-05-8
Intermediates of FORMOTEROL FUMARATE
1,2,3-Benzenetricarboxylic acid CAS:36362-97-7
5-Nitro-1,2,3-benzenetricarboxylic acid CAS:3807-81-6
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