Molekula
Tadalafil - USP CRS
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tadalafil USP CRS is a high-purity reference standard of the active pharmaceutical ingredient used primarily in the treatment of erectile dysfunction and benign prostatic hyperplasia (BPH). It serves as a certified analytical benchmark for quality control in pharmaceutical manufacturing. This chemical has the CAS number 171596-29-5, with a molecular formula of C22H19N3O4 and a molecular weight of 389.40 g/mol. It is stored at ambient conditions and carries a signal word of "Warning" for safety classification. Molekula supplies Tadalafil USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Undamaged packaging |
| Conforms to USP | Conforms to USP monograph |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 301 - 302 °C |
| Water Solubility | Practically insoluble in water |
| Vapour Pressure | 2.2 × 10⁻¹⁴ mmHg at 25 °C (Estimated) |
| pKa | pKa = 0.85 |
| log P (octanol/water) | 1.42 |
Source: PubChem CID 110635 (Human Metabolome Database (HMDB), DrugBank, HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90037462 |
| CAS Number | 171596-29-5 |
| IUPAC Name | (2R,8R)-2-(1,3-benzodioxol-5-yl)-6-methyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione |
| Molecular Formula | C22H19N3O4 |
| Molecular Weight | 389.40 |
| Exact Mass | 389.1376 |
| SMILES | CN1CC(=O)N2[C@@H](C1=O)CC3=C([C@H]2C4=CC5=C(C=C4)OCO5)NC6=CC=CC=C36 |
| InChIKey | WOXKDUGGOYFFRN-IIBYNOLFSA-N |
| InChI | InChI=1S/C22H19N3O4/c1-24-10-19(26)25-16(22(24)27)9-14-13-4-2-3-5-15(13)23-20(14)21(25)12-6-7-17-18(8-12)29-11-28-17/h2-8,16,21,23H,9-11H2,1H3/t16-,21-/m1/s1 |
| PubChem CID | 110635 |
| REACH Code | Y110 |
| HTS Code | 29349990 |
| Tariff Code | 2934999090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in Bulgarian, English, French, German, Italian, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- ADCIRCA
- CHEWTADZY
- Cialis
- ENTADFI COMPONENT TADALAFIL
- Ic351
- OPSYNVI COMPONENT TADALAFIL
- Tadalafil
- Tadalafil mylan
- Tadalafilo
- Trans-tadalafil
Frequently asked questions
What is Tadalafil USP CRS primarily used for?
Tadalafil USP CRS is a reference standard used for analytical testing, quality control, and research in pharmaceutical formulations, particularly for verifying the identity and purity of tadalafil in drugs like Cialis®.
What is the chemical formula and molecular weight of Tadalafil USP CRS?
The chemical formula is **C₂₂H₁₉N₃O₄**, and the molecular weight is **389.40 g/mol**.
How should Tadalafil USP CRS be stored?
Store at ambient temperature (typically 20–25°C) in a dry, well-ventilated area, away from direct sunlight and moisture.
What grade of Tadalafil is this, and how is it different from other grades?
This is **USP CRS (United States Pharmacopeia Certified Reference Standard)**, meeting strict purity and documentation requirements for analytical and regulatory compliance, unlike bulk or technical grades.
Can Molekula supply Tadalafil USP CRS in bulk quantities?
Molekula can provide Tadalafil USP CRS in bulk, but availability depends on stock levels and regulatory compliance for larger orders—please inquire for specifics.
What documentation comes with a Tadalafil USP CRS order?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **USP CRS compliance documentation** to verify identity, purity, and batch traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.