Pencycuron

About Pencycuron

Pencycuron is an API reference standard carrying the CAS registry number 66063-05-6. With the molecular formula C19H21ClN2O, it has a molar mass of 328.8 g/mol. Its systematic (IUPAC) name is 1-[(4-chlorophenyl)methyl]-1-cyclopentyl-3-phenylurea. It is also known as 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea or 1-(p-Chlorobenzyl)-1-cyclopentyl-3-phenylurea.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Laboratories use this the parent drug substance standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Pencycuron in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Pencycuron
Catalogue No.	VQ-050763
CAS Number	66063-05-6
IUPAC name	1-[(4-chlorophenyl)methyl]-1-cyclopentyl-3-phenylurea
Molecular formula	C₁₉H₂₁ClN₂O
Molecular weight	328.8 g/mol
Exact mass	328.1342
Grade	Reference Standard
HSN code	38229090
InChIKey	OGYFATSSENRIKG-UHFFFAOYSA-N
SMILES	C1CCC(C1)N(CC2=CC=C(C=C2)Cl)C(=O)NC3=CC=CC=C3
PubChem CID	91692

Physical properties
Physical form	Solid
LogP (XLogP3)	4.8
H-bond donors / acceptors	1 / 1
TPSA	32.3 Å²
Synonyms	1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea, N-((4-Chlorophenyl)methyl)-N-cyclopentyl-N'-phenylurea, 1-(p-Chlorobenzyl)-1-cyclopentyl-3-phenylurea, Urea, N-((4-chlorophenyl)methyl)-N-cyclopentyl-N'-phenyl-, 1-[(4-chlorophenyl)methyl]-1-cyclopentyl-3-phenyl-urea, Urea, N-[(4-chlorophenyl)methyl]-N-cyclopentyl-N'-phenyl-, 1-((4-chlorophenyl)methyl)-1-cyclopentyl-3-phenyl-urea, N-[(4-Chlorophenyl)methyl]-N-cyclopentyl-N'-phenylurea, Pencycuron [BSI:ISO], 1-((4-Chlorophenyl)methyl)-1-cyclopentyl-3-phenylurea, [(Chlorophenyl)-methyl]-N-cyclopentyl-N'-phenylurea, N-4-chlorobenzyl-N-cyclopentyl-N'-phenylurea

Safety & hazard information (GHS)

Environmental hazard

Signal word: Warning

Hazard statements

H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P273, P391, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Pencycuron?

The CAS Registry Number of Pencycuron is 66063-05-6. It is also known as 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea, N-((4-Chlorophenyl)methyl)-N-cyclopentyl-N'-phenylurea, 1-(p-Chlorobenzyl)-1-cyclopentyl-3-phenylurea.

What is the molecular formula and molecular weight of Pencycuron?

Pencycuron has the molecular formula C19H21ClN2O and a molecular weight of 328.8 g/mol. Its IUPAC name is 1-[(4-chlorophenyl)methyl]-1-cyclopentyl-3-phenylurea.

Which grade and pack sizes of Pencycuron can I order?

We supply Pencycuron in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pencycuron?

Yes. Every lot of Pencycuron is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Pencycuron be shipped internationally?

Yes. Pencycuron is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.