Skip to main content

How did it start?

As a distributor of feed and food ingredients, it was a natural progression for Chr. Olesen to expand into distributing ingredients for the veterinary pharmaceutical industry. The journey of distributing pharmaceutical ingredients started in 2006. Since then, we have further gone into the human API market and later into exclusive intermediates for pharmaceutical applications.

What do we do now?

Today, Chr. Olesen’s Pharma division is divided into two business areas: APIs and Intermediates. We have offices in Denmark, Belgium, Brazil, Germany, and the USA and primarily distribute our products to Europe, Africa, Latin America, and the USA. The pharmaceutical business is currently led by Managing Partner Tobias Facklam.

Looking into the future

Our goal is to contionously meet the changing needs of our customers within the pharmaceutical industry. To achieve this, we carefully select high quality products and regularly monitor the market for new developments and product possibilities. We are confident that investing in innovation, quality, and customer service, we will continue to be a reliable distributor in the international pharmaceutical ingredients industry.

Active Pharmaceutical Ingredients

  • The Chr. Olesen Pharma API division distributes active pharmaceutical ingredients to the Human and Vet pharmaceutical industries worldwide.


  • Chr. Olesen ChemPharm GmbH focuses primarily on exclusive intermediates for pharmaceutical applications and on fine chemicals for various applications in organic chemistry.

Chr. Olesen Synthesis A/S

As part of the Chr. Olesen Group, Chr. Olesen Synthesis A/S is a Danish manufacturer of APIs and advanced intermediates, from which the Chr. Olesen Pharma Division source a variety of products.

Active Pharmaceutical Ingredients (APIs)


The Chr. Olesen Pharma division distributes human and veterinary APIs to the global pharmaceutical industry. We source our APIs from qualified manufacturers worldwide, as well as from our own factory, Chr. Olesen Synthesis A/S, in Denmark. Our comprehensive range of services encompasses every aspect of active pharmaceutical ingredients, including import, warehousing, sales and distribution, marketing, product and business development, and quality management. With decades of experience in this field, we are able to meet our customers’ needs for the production of their pharmaceutical finished formulations.

Product lists

We obtain our products from selected manufacturers, guaranteeing high-quality, competitive pricing and ensure timely delivery through our global shipping setup.

Our own API Production at CHR. OLESEN SYNTHESIS A/S


Buprenorphine intermediates
Buprenorphine HCl
Buprenorphine Base
Dexamphetamine Sulphate
Dexamphetamine Base
Hydromorphone HCl
Tolfenamic Acid

Confirmed Lab. Process

Lisdexamphetamine (development)
Noroxymorphone (development)
Naloxone (development)

Human API Product List


Acetylsalicylic Acid (CEP)
Codeine Phosphate (CEP)
Fentanyl Citrate (CEP)
Ibuprofen (CEP)
Ketamine HCl (CEP)

Metamizole Sodium (CEP)
Methadone HCl (CEP)
Morphine HCl (CEP)
Paracetamol (CEP)
Tramadol HCl (CEP)


Albendazole (DMF)
Flubendazole (DMF)
Levamisole (DMF)
Mebendazole (CEP/DMF)


Cetirizine Di HCl (CEP)
Chlorpheniramine Maleate (CEP)
Diphenhydramine HCl (CEP)
Hydroxyzine HCl (CEP)
Levocetirizine Di HCl
Mepyramine Maleate (CEP)


Amoxycillin Trihydrate (CEP)
Ampicillin Trihydrate (CEP)
Azithromycin Dihydrate (CEP)
Chlortetracycline (CEP)
Ciprofloxacin Hcl (CEP)
Clarithromycin (CEP)
Colistin (CEP)
Doxycycline Hyclate (CEP)
Gentamycin Sulphate (CEP)
Levofloxacin Hemihydrate Metronidazole (CEP)

Oxytetracycline Base/HCl (CEP)
Roxithromycin Spectinomycin Sulphate Tetrahydrate (CEP)
Spiramycin (CEP/DMF)
Sulfadiazine Base/Sodium (CEP)
Tetracycline HCl (CEP)
Trimethoprim (CEP)
Penicillin G Procain (DMF)
Penicillin V Potassium (DMF)
Polymyxin B Sulphate (CEP)
Moxifloxacin HCl (DMF)


Alprazolam (CEP)
Bromazepam (CEP)
Chlordiazepoxide HCl
Diazepam (DMF)
Lorazepam (CEP)
Meprobamate (CEP/DMF)
Midazolam (CEP)


Calcitonin (Salmon) (CEP)
Oxytocine (CEP)

Narcotic Precursors

Ephedrine HCl
Pseudoephedrine HCl

Vitamin with DMF

Ascorbic Acid (C)
Biotin (B7)
Cholecalciferol (D3)
Cyanocobalamin (B12) (CEP)
Folic Acid (B9) (CEP)
Hydroxocobalamin (B12)
Hydroxocobalamin Acetate (B12)
Methylcobalamin (B12)
Niacinamide (B3)
Phylloquinone (K1)
Pyridoxine (B6)
Riboflavin 5-Phosphate Sodium (B2)
Thiamine (B1)
Vitamin A Palmitate 1.7 MIU/g α-Tocopherol Acetate 98% (Vit E)


Glucose (CEP)
Microcrystalline Cellulose


Allopurinol (CEP/DMF)
Betadex Sulfobutyl Ether Sodium (DMF)
Bismuth Subsalicylate Caffeine Anhydrous (CEP)
Chlorhexidine HCl (CEP)
Citicoline Sodium (DMF)
Coenzyme Q10 (DMF)
Dextromethorphan Hydrobromide (CEP/FDA)
Droperidol (CEP)
Guaifenesin (CEP/FDA)
Heparine Sodium (CEP)
Indomethacin (DMF)
Metformin HCl (CEP)
Mycophenolate Mofetil (CEP)
Phenobarbital (CEP)
Piroxicam (DMF)
Prednisolone (CEP/DMF)
Prednisone (CEP/DMF)
Quinine HCl (CEP)
Sulfadoxine (DMF)

Vet API Product List


Amprolium HCl
Levamisole HCl
Piperazine Citrate
Pyrantel Embonate


Acetylsalicylic Acid
Ketamine HCl
Metamizole Sodium
Sodium Salicylate




Amoxicillin Trihydrate
Amoxicillin Sodium
Ampicillin Trihydrate
Ampicillin Sodium
Apramycin Sulphate
Cefaprin Benzathine
Cefoperazone Sodium
Cefquinome Sulphate
Seftiofur HCl / Sodium
Chlorotetracycline HCl
Ciprofloxacin HCl
Clavulanate Potassium
Colistin Sulphate
Dihydrostreptomycin Sulphate
Doxycycline Hyclate
Erythromycin Thiocyanate
Gentamycin Sulphate
Kanamycin Monosulphate
Lincomycin HCl

Neomycin Sulphate
Oxytetracycline Base / HCl
Penicillin G Potassium
Penicillin G Sodium
Penicillin G Procaine
Polymyxin B Sulphate
Spectinomycin Dihydrochloride
Spectinomycin Sulphate
Spiramycin Base
Spiramycin Adipate
Spiramycin Embonate
Streptomycin Sulphate
Sulfadiazine Base / Sodium
Sulfadimidine Base / Sodium
Tetracycline HCl
Tiamulin Hydrogen Fumarate
Tilmicosin Phosphate
Tylosin Base
Tylosin Phosphate
Tylosin Tartrate Powder / Granulate


Cloprostenol Sodium
Dexamethasone Sodium Phosphate

Vitamin with DMF

Cyanocobalamin (Vitamin B12)
Folic Acid
Pyridoxine HCl (Vitamin B6)
Thiamine HCl (Vitamin B1)


Microcrystalline Cellulose


Betadex Sulfobutyl Ether Sodium
Bromhexine HCl
Chlorhexidine HCl
Dembrexin HCl
Iron Dextran

Active Pharmaceutical Ingredients (APIs)


In Chr. Olesen, we are committed to providing the highest quality products to our customers.

Our Quality Policy

The Quality Policy of Chr. Olesen’s Pharma API division sets forth the principles for upholding the utmost standards of quality and safety in every facet of our business activities.

Quality Management System

We have a well-implemented quality management system (QMS) that follows current international rules, specifically the EU-GDP (Good Distribution Practice) and EU-GMP (Good Manufacturing Practice) guidelines. The QMS ensures complete and compliant documentation for the APIs, in accordance with regulatory requirements such as those of EMEA, EDQM, FDA, and other local authorities.

Good Distribution Practice (GDP)

Our Chr. Olesen subsidiaries, ACTIVET GmbH and ACTIVET BVBA, have GDP certificates, and the entire Pharma Division acts in accordance with EU GDP (Good Distribution Practice) regulations. Furthermore, these subsidiaries have an API registration at the EUDRAGMDP database.

Good Manufacturing Practice (GMP)

In addition to the GDP certificate, our Chr. Olesen subsidiary ACTIVET GmbH holds a GMP certificate, a wholesale license, and an import license for APIs from microbial or animal origin according to the German drug law (AMG = Arzneimittelgesetz) requirements.


Chr. Olesen Pharmaceuticals A/S is a member of Ecovadis with a silver rating.

Active Pharmaceutical Ingredients (APIs)


You are welcome to reach out to our Active Pharmaceutical Ingredients team.


Tobias Facklam

Tobias Facklam

Managing Partner
Hans J. Schröder von Volkmann

Hans J. Schröder von Volkmann

Partner, Managing Director
Fabian von Volkmann

Fabian von Volkmann

Sales Manager
Anja Boehncke

Anja Boehncke

Sales Manager
Carsten Machholdt

Carsten Machholdt

Sales & Purchase Director
Morten Fausborg

Morten Fausborg

Human API Purchase & Sales Manager

Ivan Todorov

Vice President, Sales & Business Development Pharma

Jan Slodki

Pharma Representative
Dr Heinrich Koch

Dr. Heinrich Koch

QA Manager
Dr. Than Son Tha

Dr. Thanh Son Tha

QA Coordinator



Chr. Olesen ChemPharm GmbH distributes exclusive intermediates for pharmaceutical applications and fine chemicals in organic chemistry. We ensure that our products are of the highest quality, comply to European regulation including REACh and come with a comprehensive documentation package.

Product list

Our focus lies in identifying the right individual substance for API synthesis and fine chemicals. We source our products from selected suppliers meeting industry standards up to GMP level with a special focus on long-term partnerships.

Chr. Olesen ChemPharm GmbH

Fine chemicals and raw materials

1-Ethyl-3-(3-dimethylaminopropyl)carbodiimid.HCl (CAS 25952-53-8)
1,4-Dimethylpiperazine (CAS 106-58-1)
2,5 Hexanedione (CAS 110-13-4)
3-Chloroperbenzoic acid (CAS937-14-4)
4-(Dimethylamino) pyridine (CAS 1122-58-3)

Acetamide (CAS 60-35-5)
Acetonoxime (CAS 127-06-0)
Allylchloride (CAS 107-05-1)
Diethyl carbonate (CAS 105-58-8)
Diphenyl chlorophosphate (CAS 2524-64-3)
Ethylbromide (CAS 74-96-4)
L-(+)-Tartaric acid (CAS 87-69-4)
Methanesulfonic acid (75-75-2), Methanesulfonyl chloride (CAS 124-63-0)
N-Bromosuccinimide (CAS 128-08-5)
N,N’-Carbonyldiimidazole (CAS 530-62-1)
N,N’-Dicyclohexylcarbodiimide (CAS 538-75-0)
N,N-Diisopropylethylamine (CAS 7087-68-6)
N,N’-Dimethylformamide dimethylacetal (CAS 4637-24-5)
p-Toluene sulfonyl chloride (CAS 98-59-9)
Phosphoroxybromide (CAS 7789-59-5)
Resorcinol (CAS 108-46-3)
(S)-1-Phenylethylamine (CAS 2627-86-3)
Triethyl orthoformate (CAS 122-51-0), Trimethyl orthoformate (CAS 149-73-5)
Trifluoroacetic acid (CAS 76-05-1), Trifluoroacetic anhydride (CAS 407-25-0)
Tromethamine (CAS 77-86-1)

Starting materials, intermediates & amino acid derivatives

2-Aminobenzylalcohol (CAS 5344-90-1)
2-Nitrobenzaldehyde (CAS 552-89-6), 3-Nitrobenzaldehyde (CAS 99-61-6)
2-Phenylbutyric acid (CAS 90-27-7)
2-Phenylbutyryl chloride (CAS 36854-57-6)
4-Hydroxybenzylalcohol (CAS 623-05-2)
4-Methoxybenzoic acid (CAS 100-09-4)
4-Nitroimidazole (CAS 3034-38-6)
4-Toluenesulfonic acid monohydrate (CAS 6192-52-5)

Azelaic acid (CAS 123-99-9)
L-Pyroglumatic acid (CAS 98-79-3)
L-tert Leucine (CAS 20859-02-3)
N-Methylpiperazine (CAS 109-01-3)
Styrene oxide (CAS 96-09-3)
Trifluoroacetic acid ethyl ester (CAS 383-63-1)


1,2-Dimethoxyethane (CAS 110-71-4)
2-Methyltetrahydrofuran (CAS 96-47-9)
Dimethyl sulfoxide (CAS 67-68-5)
Tetrahydrofuran (CAS 109-99-9)


3-Aminopropyltrimethoxysilane (CAS 13822-56-5)
Tetrapropyl orthosilicate (CAS 682-01-9)
Tetraethyl orthosilicate (CAS 78-10-4)
Triethylsilane (CAS 617-86-7)
Vinyltrimethoxysilane (CAS 2768-02-7)



In Chr. Olesen, we prioritise the safety, quality, and traceability of our Pharma ingredients. Our suppliers are required to have a Quality Management System in place, along with GMP-level working standards. We thoroughly review specifications and MoAs before any contract and allocate suitable samples for testing. Our suppliers are subject to our audits ensuring compliance with our high-quality standards.

Our Quality Policy

The Quality Policy of Chr. Olesen Group sets forth the principles for upholding the utmost standards of quality and safety in every facet of our business activities.

Quality Management System

In Chr. Olesen, we prioritise the safety, quality, and traceability of our Pharma ingredients. Our suppliers are required to have a Quality Management System in place, along with GMP-level working standards. We thoroughly review specifications and MoAs before any contract and allocate suitable samples for testing. Our suppliers are subject to our audits ensuring compliance with our high-quality standards.


All EU-based customers will obtain their goods, which are handled and registered in compliance with REACH and CLP/GHS regulations. Non-EU customers may expect complete adoption of their shipping and labelling instructions.  All customers may expect compliance with international regulations for the transportation of chemicals by our logistic partners. 


Chr. Olesen ChemPharm GmbH distributes intermediates from carefully selected manufacturers of speciality chemicals in China, India, and Europe.

Good Distribution Practice (GDP)

Chr. Olesen ChemPharm Gmbh acts in accordance with EU GDP (Good Distribution Practice) regulations and further international regulations for product safety including transport of the products.



You are more than welcome to reach out to our pharma intermediates team.


Dirk Otzen

Dr. Dirk Otzen

Partner, Managing Director
Henning Beusen

Henning Beusen

Partner, Product Manager

Andreas Münds

Product Manager
Mandy Kunder

Dr. Mandy Kunder

Product Management & Order Processing
Dörte Oltmanns

Dr. Dörte Oltmanns

Quality & Regulatory Affairs

Nils Nun

QA Coordinator

Career at Chr. Olesen

At Chr. Olesen, we are more than just colleagues. We believe in fostering transformation in our employees and empowering them to reach their full potential. Explore exciting career opportunities and become a part of a dynamic and supportive team.

Explore our Universe