Catalog No. Size PriceQuantity
M21911-C Contact for quotation $100Unavailable


Pidotimod is an orally active dipeptide immunostimulant with immunomodulatory properties on the adaptive and the innate immune responses. Pidotimod increases macrophage activity and humoral immune functions. Pidotimod can be used for the research of chronic bronchitis, chronic obstructive pulmonary disease (COPD), bronchiectasis, and chronic idiopathic urticaria,et al.

Product information

CAS Number: 121808-62-6

Molecular Weight: 244.27

Formula: C9H12N2O4S

Chemical Name: 3-(5-oxopyrrolidine-2-carbonyl)-1,3-thiazolidine-4-carboxylic acid

Smiles: OC(=O)C1CSCN1C(=O)C1CCC(=O)N1


InChi: InChI=1S/C9H12N2O4S/c12-7-2-1-5(10-7)8(13)11-4-16-3-6(11)9(14)15/h5-6H,1-4H2,(H,10,12)(H,14,15)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 100 mg/mL (409.38 mM; Need ultrasonic). H2O : 25 mg/mL (102.35 mM; Need ultrasonic).

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vivo:

In toxicology study in animals, Pidotimod (oral gavage; 800 mg/kg;12 months) is non-toxic in rats and is non-toxic dogs at 600 mg/kg. Pidotimod is non-teratogenic in rats (600 mg/kg orally or 1000 mg/kg IV) and has no effects on subsequent embryofoetal development in rats (up to 1000 mg/kg/day),it has no perinatal or postnatal toxic effects in rats (600 mg/kg orally). In ex vivo experiments in mice, Pidotimod (intraperitoneal administration; 200 mg/kg; 5 days) potentiats natural killer (NK) cell activity and produces an increase in the proliferative response to mitogens such as concanavalin A (ConA) and interleukin-2 (IL-2). Pidotimod (intraperitoneal administration; 10-100 mg/kg) normalizes depletion of peritoneal macrophage numbers, and significantly increases macrophage superoxide anion (O2–) production in methylprednisolone-induced immunosuppressed mice.

Products are for research use only. Not for human use.

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