CAS No. 59-67-6

Batch: Purity:99.95
Nicotinic Acid Chemical Structure
Chemical Structure
Check the Nicotinic Acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name pyridine-3-carboxylic acid
CAS Number 59-67-6
Molecular Formula

C6H5NO2

Molecular Weight (MW) 123.11
SMILES C1=CC(=CN=C1)C(=O)O
InChIKey PVNIIMVLHYAWGP-UHFFFAOYSA-N

Biological Activity

Nicotinic acid is a water-soluble B-complex vitamin that acts as an agonist of hydroxycarboxylic acid receptor 2 (HCA2/GPR109A). It is converted into the essential coenzymes nicotinamide adenine dinucleotide (NAD) and NADP, which support cellular respiration and metabolic signaling pathways. Activation of HCA2 suppresses adipocyte lipolysis and modulates downstream lipid, amino acid, and carbohydrate metabolism to regulate cellular energy homeostasis. [1][2]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 25 mg/mL (203.07 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 2 mg/mL
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
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Reference

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Note: Technical data last updated: Sep 1, 2026.