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Dr. André Rosehr

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Dr. André Rosehr is the linking interface between customers, sales and production in his role as Manager Technical Services & Development. He is the technical contact for Performance Solvents, Middle Distillates and Renewable Products. His focus is on new product development, evaluation of new feedstocks and accommodating the transformation to renewable and sustainable hydrocarbon products at Haltermann Carless. T: +49 40 333 18 166 email: andre.rosehr@haltermann-carless.com

Blog Post by Dr. André Rosehr

Jul 2, 2026

n-Heptane Reag. Ph. Eur. as a basis for safe pharmaceutical processes

Haltermann Carless introduces n‑Heptane Reag. Ph. Eur., a high‑purity solvent for demanding API manufacturing and analytical applications.
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Jun 19, 2026

CBD production: How is this natural substance extracted?

One of the most common methods for CBD production is the extraction with hydrocarbons such as n-heptane.
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May 29, 2026

Interview: How n‑heptane Reag. Ph. Eur. ensures process reliability

n‑Heptane Reag. Ph. Eur. in practice: What matters most for GMP processes, reproducibility and reliable analytics – expert insights.
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Apr 30, 2026

n‑Heptane Reag. Ph. Eur.: Targeted Control and Reproducibility

Why do pharmaceutical companies choose n‑Heptane Reag. Ph. Eur. specification? Overview of key benefits.
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Apr 16, 2026

Water treatment: Pilot® oils for flocculants

Discover the benefits of Haltermann Carless Pilot® oils for flocculants: low aromatic content, biodegradable and high purity for efficient water treatment.
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Apr 2, 2026

Pharmaceutical solvents: Quality control in CBD production

CBD production: Read what you should pay attention to in order to ensure the best quality when producing CBD.
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Feb 20, 2026

ORC process for electricity & heat production: What are the benefits?

ORC process: Using the Organic Rankine Cycle process, geothermal plants can use low temperature heat to generate electricity and heat.
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Jan 22, 2026

Solvents for paints and coatings: Alternatives to toluene and xylene

Looking for alternatives to toluene and xylene? Then high purity paraffin suppliers are a good choice. Look out for these product qualities.
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Sep 6, 2024

Cyclopentane for pharmaceutical refrigerators: Safe storage

As a blowing agent in PU foams, Cyclopentane for pharmaceutical refrigerators provides highly effective insulation and therefore safe storage of medicine.
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Aug 7, 2024

Haltermann Carless solvents strong in paints, coatings and adhesives

Discover why Haltermann Carless provides solvents strong in paints, coatings and adhesives—reliable, consistent, and tailored to your needs.
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