Sildenafil

Sildenafil (CAS 139755-83-2) — small molecule (PDE5 inhibitor). Supplied in bulk from 1 kg at ≥99.0% (HPLC) purity, with specification, Certificate of Analysis and Safety Data Sheet.

Product summary for procurement. The specification, Safety Data Sheet and batch Certificate of Analysis are supplied as separate documents. Not medical advice.

1. Identity

Product name	Sildenafil
Synonyms	UK-92480
CAS number	139755-83-2
Molecular formula	C22H30N6O4S
Molecular weight	474.58
Product type	Small molecule (PDE5 inhibitor)
Category	Pharmaceutical Ingredients
Identity testing	Confirmed for every batch on the Certificate of Analysis

Pyrazolopyrimidinone phosphodiesterase type 5 inhibitor.

2. Quality and handling

Purity	≥99.0% (HPLC)
Physical form	Stated on the Certificate of Analysis.
Storage	Stated on the Safety Data Sheet and Certificate of Analysis supplied with each batch.
Packaging	Sealed, labelled containers suited to the order quantity; confirmed on your quotation.

3. Test parameters

Appearance (Visual)	Conforms
Identity (1H-NMR)	Conforms: Consistent with structure
Identity (molecular mass) (LC-MS)	Conforms
Purity (HPLC (area %))	≥ 99.0 %
Water content (Karl Fischer)	Report result

Batch results are reported on the Certificate of Analysis supplied with each order.

4. Regulatory information

Classification	Supplied with buyer declaration
Status notes	Compliance Review Required
Enquiry handling	Online quote; buyer declaration checked at payment

5. Documentation

Product specification	Prepared for you and released to your private enquiry page on request
Certificate of Analysis (COA)	Issued for your batch and shipped with the order
Safety Data Sheet (SDS)	Prepared for you and released to your private enquiry page on request
Method of analysis (MOA)	Prepared for you and released to your private enquiry page on request
Residual solvents statement (ICH Q3C)	Prepared for you and released to your private enquiry page on request
Elemental impurities statement (ICH Q3D)	Prepared for you and released to your private enquiry page on request
Nitrosamine risk assessment	Prepared for you and released to your private enquiry page on request
End-use / end-user declaration	Prepared for you and released to your private enquiry page on request