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About Us | Pharmaceutical Reference Standards

About Us

Excellence in Pharmaceutical Reference Standards & Specialty Chemicals

Welcome to our website dedicated to providing high-quality Pharmaceutical Reference standards & Allied speciality Chemicals, essential tools for advancing drug development, ensuring product safety, and supporting regulatory compliance in the pharmaceutical industry. Our comprehensive range of products are meticulously curated to meet the diverse needs of pharmaceutical researchers, manufacturers, and regulatory agencies worldwide.

We are a leading provider of high-quality chemical reference materials, standards, and analytical solutions serving the pharmaceutical, biotechnological, and chemical industries. Our mission is to support research, development, and quality control processes by delivering products that meet the highest levels of precision and regulatory compliance.

With a dedicated team of scientists and industry professionals, we continuously expand our catalog of:

API Standards

Impurity and Nitrosamine Standards

Pharmacopoeial and Excipient Standards

Stable Isotope Labelled Compounds

We pride ourselves on our commitment to quality, integrity, and scientific excellence. Whether you're a small laboratory or a global pharmaceutical company, we provide custom solutions to meet your exact analytical needs.

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Highest standards in all products

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Ethical business practices

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Continuous improvement

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Our customer-centric approach ensures timely delivery, technical support, and a partnership built on trust and innovation.

Your Trusted Partner in Pharmaceutical Excellence

Committed to advancing global health through precision and quality
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NITROSAMINE IMPURITIES
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Levocetirizine

Levocetirizine Impurities | Alfa Omega Pharma

Levocetirizine Impurities

High-purity reference standards for HPLC analysis, stability studies, and quality control.

Comprehensive Offerings

Alfa Omega Pharma provides certified reference substances, degradation products, and validated analytical methods fully compliant with pharmacopeial guidelines (USP, EP, ICH).

Custom Synthesis

We specialize in the custom synthesis of Impurities, Metabolites, and stable-labelled isotopes tailored to your specific research and regulatory needs.

Key Available Impurities & Derivatives:

Cetirizine Ethyl Ester
Cetirizine USP Related Compound B
Levocetirizine Methyl Ester (USP)
N,N-Bis(2- chloroethyl)benzenesulfonamide
Levocetirizine HCl
(R)-Cetirizine N -Oxide DiHCl (Levocetirizine N -Oxide DiHCl) (Levocetirizine N-Oxide)
Levocetirizine Levocetirizinedihydrochloride
Cetirizine USP Related Compound A
Cetirizine USP Related Compound C
Levocetirizine 4-Chlorobenzhydrol Impurity (USP)
Levocetirizine 4-Chlorobenzophenone Impurity (USP)
Levocetirizine Amide impurity
Levocetirizine chiral amine nitroso Impurity 1
Levocetirizine EP Impurity A – Nitrosamine
Levocetirizine EP Impurity B
Levocetirizine EP Impurity B Ethyl Ester
Levocetirizine EP Impurity E
Levocetirizine EP Impurity F
Levocetirizine EP Impurity G
Levocetirizine Ethyl Ester
Levocetirizine Impurity 1 / Cetirizine EP Impurity B type (Chiral R isomer) (Free base)
Levocetirizine Impurity 1 / Cetirizine EP Impurity B type (Chiral R isomer) (HCl salt)
Levocetirizine Impurity 9
Levocetirizine PEG 400 Ester
N-Nitroso Levocetirizine chiral amine nitroso