Pharmaceutical Intermediates - suppliers, manufacturers, exporters


Propiolic acid


Product Info.
Chemical Name: Propiolic acid
CAS Number: 471-25-0
M.F.: C3H2O2
M.W.: 70.05
PROPIOLIC ACID; Propiolic acidd;
PROPARGYLIC ACID; Carboxyacetylene
Purity: 97%
Appearance: Light yellow liquid
Application: Propiolic acid is reagent employed in the synthesis of transition metal complexes, haloalkyl propiolates, and halopropenoates.
Disclaimer: Products covered by valid patents are not offered for commercial use. It is the responsibility of buyers to ensure transactions do not infringe any patent rights applicable.


ammonium formate

Ammonium formate is mainly used for organic synthesis in electrolytic capacitor industry,

and also for medical intermediate and analysis agent. 

   Ammonium formate is produced by complete neutralisation of formic acid with high purity 

   ammonium hydroxide.It occurs as white colorless crystals. It is freely soluble in water. It is    

   a non-toxic,neutral salt with low reactivity. And it easily deliquesces so that it should 

   be kept in dry and airtight container .


atenolol USP 99%

CAS: 29122-68-7 60966-51-0
M.W: 266.34
BP: 508℃ at 760 mmHg
Appearance:White powder
Application:Pharmaceutical Raw Material,Cardioselective adrenergic blocker. Antihypertensive, antianginal, antiarrhythmic

Econazole Nitrate

Econazole Nitrate is an important Pharmaceutical Intermediate used from the making of different kinds of drugs.

Properties Suppliers
Methotrexate 99%

Methotrexate, Cas# 59-05-2

Appearance: orange yellow crystalline powder


Mops USP min. 99%

Hopax is a manufacturer and supplier of Mops (CAS 1132-61-2), a zwitterionic biological buffer often used as a buffering agent in biological and biochemical research.

Similarly to Mes (also manufactured by Hopax), this Good's Buffer lacks the capability to form a complex with most metal ions, therefore it is recommended for use as a noncoordinating buffer in different solutions with metal ions.

Mops is a popular choice for cell culture media and for separating RNA in agarose gels. Moreover, it is widely used as a lysis buffer and as a running buffer in electrophoresis and for protein purification in chromatography. In personal care and cosmetics application, Mops can protect active ingredients against degradation and functions as a buffer for gelling.

Hopax's Mops is specially tested and certified to be free of DNase, RNase and protease activity for molecular biology application.


Synonyms:3-(N-Morpholino)propanesulfonic acid | 4-Morpholinepropanesulfonic acid

Sanguinarine 99%


Appearance :off white crystalline powder


loss on drying:2.0%max

Tris USP min. 99%

Hopax is a manufacturer and supplier of Tris, also known as Trometamol (CAS 77-86-1), a zwitterionic biological buffer often used as a buffering agent in biological and biochemical research.


This Good's Buffer is an extremely common chemical used in several applications, such as in buffer solutions for gel electrophoresis (TAE/TBE) or in the preparation of Laemmli buffer, one of the most popular running buffers for SDS- PAGE. Its use has also been reported as a binding buffer and eluent in anion exchange chromatography.


In personal care and cosmetics applications, Tris functions as a buffer and a mild neutralizing amine for skin and sun care formulations. This chemical is considered an excellent emulsifying agent and viscosity controller, and it is known for its capacity to maintain the original colors of lotions after opening.


Hopax's Tris is specially tested and certified to be free of DNase, RNase and protease activity. It is offered in several different grades to suit customer's requirements.


Synonyms?Trometamol | Tromethamine | Trizma | Tris base | 2-Amino-2-(hydroxymethyl)-1,3-propanediol | THAM | Tris(hydroxymethyl)aminomethane

d-proline USP 99%

D-Phenylalanine 673-06-3
D-Proline 344-25-2
D-Tryptophan 153-94-6
L-tert.Leucine 20859-02-3
D-Phenylalaninol 5267-64-1
L-Phenylalaninol 3182-95-4
(S)-(+)-2-Phenylglycinol 20989-17-7
(R)-(-)-2-Phenylglycinol 56613-80-0
L-Valine methyl ester hydrochloride 6306-52-1
L-Leucine benzyl ester tosylate 1738-77-8
D-tryptophan methyl ester hydrochloride 14907-27-8
L-tert-Leucine methyl ester hydrochloride 63038-27-7
L-Phenylalanine benzyl ester hydrochloride 2462-32-0
L-Valine benzyl ester hydrochloride 2462-34-2
4-Nitro-L-phenylalanine monohydrate 207591-86-4
Acetyl-L-Phenylalanine 2018-61-3
Acetyl-trans-4-hydroxy-L-proline 33996-33-7
N-ω-Nitro-L-arginine 2149-70-4
Sodium methanesulfinate 20277-69-4
3-Chloro-2,4,5-trifluorobenzoic acid 101513-77-3 
2,5-Dibromopyridine 624-28-2
(S)-2-Hydroxyl -3-methoxy-3,3-diphenylpropanoic acid 178306-52-0
(S)-4-Benzyl-2-oxazolidinone 90719-32-7 
(R)-4-Benzyl-2-oxazolidinone 102029-44-7
(S)-(+)-4-Phenyl-2-oxazolidinone 99395-88-7
(R)-(-)-4-Phenyl-2-oxazolidinone 90319-52-1
Boc-D-Phenylalanine 18942-49-9
Boc-D-Phenylalaninol 106454-69-7
Boc-L-Phenylalanine methyl ester 51987-73-6
N-α-Boc-N-ω-nitro-L-arginine 2188-18-3
Boc-L-tert-leucine 62965-35-9
Boc-L-homoPhenylalanine 100564-78-1
Boc-L-Leucine monohydrate 13139-15-6
Boc-L-Phenylalanine 13734-34-4
Boc-Gly-OtBu 111652-20-1
BOC-L-Prolinol 69610-40-8
Boc-L-Proline 15761-39-4
MOC-L-Valine 74761-42-5
Moc-L-tert-leucine 162537-11-3 
L-Glutamic acid diethyl ester hydrochloride 1118-89-4
Z-D-Proline 6404-31-5
Z-L-Valine 1149-26-4
Fmoc-L-Aspartic acid β-tert.buty ester 71989-14-5
N-α-Fmoc-N-ε-Boc-L-lysine 71989-26-9
Fmoc-L-Valine 68858-20-8
Fmoc-L-Phenylalanine 35661-40-6
N-α-Fmoc-L-tryptophan 35737-15-6
Fmoc-L-glutamic acid γ-tert·butyl ester 71989-18-9
Fmoc-L-isoleucine 71989-23-6
Fmoc-Glycine 29022-11-5
N-α-Fmoc-N-im-trityl-L-histidine 109425-51-6
Fmoc-L-Leucine 35661-60-0
Fmoc-S-trityl-L-Cysteine 103213-32-7
Boc-L-glutamic acid γ-methyl ester 45214-91-3
BOC-L-phenylglycinol 117049-14-6
BOC-D-phenylglycinol 102089-74-7
Boc-L-Phenylalaninol 66605-57-0
Cbz-L-Phenylalaninol 6372-14-1 
L-Alanine isopropyl ester hydrochloride 39825-33-7
N-ε-Trifluoroacetyl-L-lysine 10009-20-8
D-Alaninol 35320-23-1
Boc-Sarcosine 13734-36-6
Boc-2-Aminoisobutyric acid 30992-29-1
Boc-trans-4-hydroxy-L-proline 13726-69-7
Boc-Pyr-Ome 108963-96-8
Boc-L-Piperidine-2-carboxylic acid 26250-84-0


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