Click to view
High-quality Sildenafil Citrate API supplied by Macroline Health Care — a trusted exporter of Pharmaceutical APIs and Advance Intermediates with regulatory grade and documentation support.
Macroline Health Care supplies Sildenafil Citrate API for pharmaceutical manufacturers and formulation partners worldwide. Below is a brief overview of the molecule and its commercial relevance.
Sildenafil Citrate (CAS No. 171599-83-0) is the citrate salt of sildenafil and belongs to the phosphodiesterase type-5 (PDE5) inhibitor class. It increases cyclic guanosine monophosphate (cGMP) activity by inhibiting PDE5 and thereby supports smooth-muscle relaxation and vasodilation.
Sildenafil is used in pharmaceutical products for the treatment of erectile dysfunction and pulmonary arterial hypertension, depending on the approved formulation and indication.
For pharmaceutical supply purposes, Sildenafil Citrate is available as an active pharmaceutical ingredient with quality documentation such as COA and MSDS available on request.
Key technical parameters for quality evaluation, regulatory review, and sourcing decisions.
| Parameter | Specification |
|---|---|
| Chemical Name | Sildenafil Citrate |
| CAS Number | 171599-83-0 |
| Sildenafil Free Base CAS | 139755-83-2 |
| Synonyms | Sildenafil Citrate; Sildenafil 2-hydroxy-1,2,3-propanetricarboxylate |
| Molecular Formula | C₂₂H₃₀N₆O₄S·C₆H₈O₇ |
| Molecular Weight | 666.70 g/mol |
| Appearance | White to off-white crystalline powder |
| Identification | As per applicable pharmacopoeial specification |
| Assay | 98.0%–102.0%, calculated on anhydrous and solvent-free basis |
| Related Substances | As per applicable pharmacopoeial specification |
| Water / Moisture | As per applicable specification |
| Residue on Ignition | As per applicable specification |
| Storage | Store in a tightly closed container in a cool, dry place and protect from moisture and excessive heat |
Recommended packing and storage guidance to help maintain product integrity during export and warehousing.
| Parameter | Details |
|---|---|
| Packaging | Available in suitable pharmaceutical-grade packaging according to customer requirements and applicable transportation regulations. |
| Pack Size | To be confirmed based on customer requirements and current manufacturer specification. |
| Container | Properly sealed, labelled and suitable for pharmaceutical API storage and transportation. |
| Storage | Keep tightly closed and store according to the conditions specified in the approved product documentation / SDS. |
| Bulk Packaging | Bulk quantities can be arranged subject to availability and applicable packaging requirements. |
| Shelf Life | As specified by the manufacturer and supported by the applicable product documentation. |
Our team supports commercial inquiries, regulatory grade confirmation, COA/MSDS, and export documentation for pharmaceutical partners worldwide.