Langde Company mainly produce in APIs (Anti-Convulsant),Cosmetic raw materials,intermediate of Liquid Crystals, Imidazole ramification, cinnamic acid ramification and other intermediate chemical products,Our enterprise aims to be engaged in researching and producing first and second-grade new drugs. We will make contributions to the health cause of mankind while continuously improving the core competitive power of enterprise.


Phenytoin 57-41-0
Phenytoin sodium 630-93-3
Phenytoin Calcium 17199-74-5
Valproic acid 99-66-1
Sodium valproate 1069-66-5
Valproate Semisodium(Divalproate sodium, Divalproex sodium) 76584-70-8
Magnesium valproate 62959-43-7
Valpromide 2430-27-5
Calcium Valproate 33433-82-8
Palonosetron Hydrochloride 135729-62-3
Rasagiline Mesylate 161735-79-1
Olopatadine hydrochloride 140462-76-6
Lacosamide 175481-36-4
Raloxifene Hydrochloride 82640-04-8
Quetiapine Fumarate 111974-72-2
Imidafenacin 170105-16-5
Paeonol 552-41-0
Gliclazide 21187-98-4
Bendamustine hydrochloride 3543-75-7
Bendamustine 16506-27-7
Bendamustine hydrochloride 97832-05-8
Tigecycline 220620-09-7
Etamsylate 2624-44-4
Calcium dobesilate 20123-80-2
5,6,7,8-Tetrahydro-1-naphthoic acid 4242-18-6
3-quinuclidinone聽hydrochloride 1193-65-3
(S)-(-)-3-Aminoquinuclidine Dihydrochloride 119904-90-4
(R)-(+)-3-Aminoquinuclidine Dihydrochloride 123536-14-1
3-Aminoquinuclidine Dihydrochloride 6530-9-2
(S)-N-(1-Azabicyclo[2.2.2]oct-3-yl)-5,6,7,8-tetrahydro-1-naphthalenecarboxamide 135729-78-1
3-quinuclidinol hydrochloride 6238-13-7
(R)-(-)-3-quinuclidinol 25333-42-0
(S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline 118864-75-8
3-aminophenylacetylene 54060-30-9
1-Aminoindane hydrochloride 70146-15-5
(R)-(-)-1-Aminoindane hydrochloride 10305-73-4
2-Bromomethyl-3-nitro benzoic acid methyl ester 98475-07-1
N-Methyl-3-(2-methylphenoxy)benzenepropanamine 42142-52-9
4-Bromo-2,2-diphenylbutyronitrile 39186-58-8
4-Bromo-2,2-Diphenyl Butyric Acid 37742-98-6
3-(4'-Bromo[1,1'-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthalenol 56181-82-9
4-amino-2-chloro-6,7-dimethoxyquinazoline 23680-84-4
(R)-2-Amino-3-methoxylpropanoic acid 86118-11-8
D-2-Amino-3-hydroxypropanoic acid 312-84-5
(R)-2-(tert-butoxycarbonylamino)-3-hydroxypropanoic acid 6368-20-3
(R) (R)-2-Amino-3-methoxylpropanoic acid 86118-11-8
(R)-2-Amino-3-methoxypropanoic acid hydrochloride 86118-10-7
(R)-2-(tert-butoxycarbonylamino)-3-methoxypropanoic acid 86123-95-7
(R)-tert-Butyl 1-(benzylamino)-3-methoxy-1-oxopropan-2-ylcarbamate 880468-89-3
(R)-2-Acetamido-3-methoxylpropanoic acid
4-(2-Piperdinoethoxy)-benzoic acid Hydrochloride 84449-80-9
6-Methoxy-2-(4-methoxyphenyl)benzo[b]thiophene 63675-74-1
N-(2-Hydroxyethoxy)Ethylpiperazine dihydrochloride 85293-16-9
10,11-Dihydro-11-oxodibenzo[b,f][1,4]thiazepine 3159-7-7
11-Chloro-dibenzo[b,f][1,4]thiazepine 13745-86-3
11-Piperazinodibenzo[b,f][1,4]thiazepine dihydrochloride 111974-74-4
[3-(Dimethylamino)propyl]triphenylphosphonium bromide hydrobromide 27710-82-3
Isoxepac 55453-87-7
3-Amino-3-azabicyclo[3.3.0]octane hydrochloride 58108-05-7
4-Methylphenylsulfonylurea 1694-06-0
3,4-Dihydroxybenzoic acid 99-50-3
Vanillic acid,4-Hydroxy-3-methoxybenzoic acid 121-34-6
Vanillyl alcohol,4-Hydroxy-3-methoxybenzyl alcohol 498-00-0
Ethyl-N-methyl malonamide 71510-95-7
insectifuge ester,BAAPE 52304-36-6
2-Methylphenylacetylene 706-47-2
3-Methylphenylacetylene 766-82-5
4-Methylphenylacetylene 766-97-2
4-MethoxyPhenylacetylene 768-60-7
4-Ethylphenylacetylene 40307-11-7
4-Ethoxyphenylacetylene 79887-14-2
4-Propylphenylacetylene 62452-73-7
4-Butylphenylacetylene 79887-09-5
4-Pentylphenylacetylene 79887-10-8
4-n-Hexylphenylacetylene 79887-11-9
4-n-Heptylphenylacetylene 79887-12-0
4-n-Octylphenylacetylene 79887-13-1
2-Chlorophenylacetylene 873-31-4
3-Chlorophenylacetylene 766-83-6
4-Chlorophenylacetylene 873-73-4
2-Fluorophenylacetylene 766-49-4
3-Fluorophenylacetylene 2561-17-3
4-Fluorophenylacetylene 766-98-3
1-Ethynyl-2-nitrobenzene聽 16433-96-8
1-Ethynyl-3-nitrobenzene聽 3034-94-4
1-Ethynyl-4-nitrobenzene聽 937-31-5
Trimethylsilylacetylene 1066-54-2
Triethylsilylacetylene 1777-03-3
Triisopropylsilylacetylene 89343-06-6
(4-Methoxyphenylethynyl)trimethylsilane聽 3989-14-8
2-Ethynylpyridine 1945-84-2
3-Ethynylpyridine 2510-23-8
4-Ethynylpyridine 2510-22-7
4-Ethynylpyridine hydrochloride 352530-29-1
thienylacetylene 67237-53-0
2-Ethynyl aniline (2-aminophenylacetylene) 52670-38-9
3-Ethynyl aniline (3-aminophenylacetylene) 54060-30-9
4-Ethynyl aniline (4-aminophenylacetylene) 14235-81-5
4-(Trans-4-propylcyclohexyl)phenylacetylene 81936-33-6
4-(Trans-4-Pentylcyclohexyl)phenylacetylene