Overview
Olmesartan medoxomil (CAS 144689-63-4 ), also marketed under the brand names Benicar and Olmetec, is an angiotensin II receptor blocker (ARB) prodrug used as an active pharmaceutical ingredient in antihypertensive formulations.
Developed under the research code CS-866, it is a finished API supplied to generic and branded pharmaceutical manufacturers for oral solid dosage development. The primary application is in the manufacture of oral tablets.
For the treatment of hypertension, it is formulated as a standalone or combination product, commonly paired with amlodipine or hydrochlorothiazide. Generic drug manufacturers source this API to develop bioequivalent products.
This sourcing typically follows patent expiry in key regulated markets. Contract development and manufacturing organizations (CDMOs) use it in formulation development projects requiring ICH-compliant API characterization.
Stability profiling is a critical component of these projects. Pharmaceutical importers and distributors also source it for supply into regulated markets requiring DMF or CEP documentation support for their filings.
Olmesartan medoxomil is supplied as a white to off-white crystalline powder. It is available in pharmaceutical-grade specifications aligned with USP , BP , and Ph. Eur. monographs for global compliance.
Standard commercial pack sizes range from small quantities for R&D use to bulk quantities for commercial manufacturing batches. This ensures flexibility for both pilot studies and full-scale pharmaceutical production lines.
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Physical Properties
| Melting Point | 184.14 °C |
| Boiling Point | 804.2±75.0 °C(Predicted) |
| Density | 1.38±0.1 g/cm3(Predicted) |
| Flash Point | 180°C |
| Appearance | White to off-white crystalline powder |
| Color | white to beige |
| Form | powder |
Safety & Handling
Danger GHS07 GHS08 Hazard Statements H302 Harmful if swallowed H312 Harmful in contact with skin H319 Causes serious eye irritation H332 Harmful if inhaled H360 May damage fertility or the unborn child Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P321 Specific treatment (see … on this label). P330 Rinse mouth. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 2934990002 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 144689-63-4
- EC Number
- 604-433-1
- Mol. Weight
- 558.6
- HS Code
- 2934990002
- Category
- Pharmaceutical Intermediates