Overview
Sitagliptin phosphate (CAS 654671-78-0 ) is the phosphate salt form of sitagliptin, a DPP-4 inhibitor active pharmaceutical ingredient developed for the management of type 2 diabetes.
Sitagliptin phosphate monohydrate is the primary commercially distributed hydrate form, while the anhydrous grade serves distinct formulation requirements for pharmaceutical manufacturers.
Both forms are sourced by pharmaceutical manufacturers and API importers as the basis for finished oral dosage production. The compound is the active ingredient in oral antidiabetic tablet formulations.
It functions as the DPP-4 enzyme inhibitor delivering the therapeutic effect. Contract manufacturers and generic drug producers source it to develop bioequivalent products following patent expiry.
It is also used in fixed-dose combination tablets paired with metformin, requiring compatibility evaluation. Analytical and QA laboratories procure reference-grade material for method validation.
Sitagliptin phosphate is supplied as a white to off-white crystalline powder in both monohydrate and anhydrous forms. Standard grades include API-grade material manufactured under ICH Q7 GMP guidelines.
Specifications are aligned to pharmacopoeial standards such as USP , Ph.Eur. , BP , and EP . Packaging is typically offered in kilogram-scale quantities suited to clinical batch manufacturing.
These quantities are also ideal for commercial production runs. The material ensures high purity and stability for long-term storage and distribution within the global pharmaceutical supply chain.
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Physical Properties
| Melting Point | 213-216 °C |
| Appearance | White Solid |
| Color | White to Off-White |
| Form | Solid |
Safety & Handling
Warning GHS07 GHS08 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H373 May causes damage to organs through prolonged or repeated exposure Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P332+P317 Get emergency medical help. 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.
Other Names
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Chemical Properties
- CAS Number
- 654671-78-0
- EC Number
- -
- Mol. Weight
- 523.32
- Category
- Pharmaceutical Intermediates