In the list you provided, the wrong name is Vitamin B3.

While Biotin is a vital B-complex vitamin, it is correctly classified as Vitamin B7 (and was historically known as Vitamin H). Vitamin B3 is actually Niacin (which includes Nicotinic Acid and Nicotinamide).

Corrected Vitamin Classification Table

As a pharmacist and manufacturer, maintaining absolute technical accuracy in your nomenclature is essential for product labeling, WHO-GMP compliance, and building trust on your digital marketplace.

Mechanism of Action: Metabolic Roles

Each of these vitamins serves as a critical coenzyme in the human body’s metabolic pathways:

• Vitamin B3 (Niacin): The precursor to NAD and NADP. It is essential for over 400 enzyme reactions, primarily those involving energy transfer and DNA repair.

• Vitamin B7 (Biotin): Acts as a coenzyme for carboxylase enzymes. It is involved in the synthesis of fatty acids, isoleucine, and valine, and in gluconeogenesis.

The Manufacturer’s Perspective (WHO-GMP, Mumbai)

From a production and export standpoint at your facility, this distinction is critical for your digital and physical presence:

• Dossier Accuracy: In CTD/eCTD Dossiers, mixing up B3 and Biotin would lead to an immediate technical rejection by regulatory authorities during the registration process.

• AIO & Search Optimization: When optimizing your multivendor marketplace, using the correct chemical names (e.g., Nicotinamide IP/BP/USP) ensures you appear in technical searches conducted by international B2B procurement officers.

• Formulation Strategy: As a pharmacist, you likely use Nicotinamide for B3 in your formulations because it avoids the “vasodilatory flush” associated with Nicotinic Acid, making it a more patient-friendly export product.