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Tadalafil

CAS Number
171596-29-5
EC Number
687-782-2
Chemical Formula
C22H19N3O4
Molecular Weight
389.4 g/mol

Description

Tadalafil (CAS 171596-29-5 ), also referenced in development literature as IC351, is a PDE5 inhibitor active pharmaceutical ingredient used in the treatment of erectile dysfunction and pulmonary arterial hypertension. It functions as the pharmacologically active component in finished oral dosage forms and is sourced by formulators and importers as a bulk API or pharmaceutical intermediate for various industrial applications. In prescription drug manufacturing, the compound is formulated into film-coated tablets at defined dosage strengths for both on-demand and daily-use therapeutic regimens across global markets. Compounding pharmacies source the bulk API to prepare customized dosage forms for patients with specific clinical requirements. This ensures flexibility in treatment options for diverse patient populations. Pulmonary arterial hypertension treatments represent a distinct therapeutic segment, where the ingredient is incorporated into once-daily oral formulations targeting vascular smooth muscle relaxation and improved blood flow. Research and analytical laboratories also procure it as a reference standard or intermediate for method development and quality control testing to ensure the safety and efficacy of final products. The substance is supplied as a white to off-white crystalline powder. It is available in API-grade quality aligned with USP and EP monograph specifications, which are the primary benchmarks required. Bulk quantities are typically offered in kilogram-scale packaging, with documentation including CoA, impurity profiles, and relevant DMF references to support regulatory compliance and manufacturing standards. Contact us for supply of Tadalafil Request Quote

Other Names (Synonyms)

Tadanafil | ICOS 351 | IC351 | Cialis® | Adcirca® | Tadalafil mylan | Trans-tadalafil

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point303.2 °C
Boiling Point679.1±55.0 °C(Predicted)
Density1.51±0.1 g/cm3(Predicted)
Flash Point2°C
AppearanceWhite to Off-White Cyrstalline Solid
Colorwhite to beige
Formpowder

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code2934990002
WGK (Germany)3