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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Urapidil and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Urapidil impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Urapidil-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

N-Nitroso Urapidil
CAT No: CL-URPD-NO-01 CAS No: NA Mol Wt: 416.47 Mol F: C20H28N6O4 Inv Status: Custom Synthesis
Chemical Name: N-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-(3-(4-(2-methoxyphenyl)piperazin-1-yl)propyl)nitrous amide
N-Nitroso Urapidil Impurity 11
CAT No: CL-URPD-NO-02 CAS No: NA Mol Wt: 402.46 Mol F: C19H26N6O4 Inv Status: Custom Synthesis
Chemical Name: N-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-(3-(4-(2-hydroxyphenyl)piperazin-1-yl)propyl)nitrous amide
N-Nitroso Urapidil Impurity 2
CAT No: CL-URPD-NO-03 CAS No: NA Mol Wt: 432.48 Mol F: C20H28N6O5 Inv Status: Custom Synthesis
Chemical Name: N-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-(3-(4-(4-hydroxy-2-methoxyphenyl)piperazin-1-yl)propyl)nitrous amide
N-Nitroso Urapidil Impurity 3
CAT No: CL-URPD-NO-04 CAS No: NA Mol Wt: 416.48 Mol F: C20H28N6O4 Inv Status: Custom Synthesis
Chemical Name: N-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-(3-(4-(4-methoxyphenyl)piperazin-1-yl)propyl)nitrous amide
N-Nitroso Urapidil Impurity 4
CAT No: CL-URPD-NO-05 CAS No: NA Mol Wt: 420.9 Mol F: C19H25ClN6O3 Inv Status: Custom Synthesis
Chemical Name: N-(3-(4-(2-chlorophenyl)piperazin-1-yl)propyl)-N-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)nitrous amide
N-Nitroso Urapidil Impurity 5
CAT No: CL-URPD-NO-06 CAS No: NA Mol Wt: 242.24 Mol F: C9H14N4O4 Inv Status: Custom Synthesis
Chemical Name: N-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-(3-hydroxypropyl)nitrous amide
N-Nitroso Urapidil Impurity 6
CAT No: CL-URPD-NO-07 CAS No: NA Mol Wt: 431.47 Mol F: C20H27N6O5 Inv Status: Custom Synthesis
Chemical Name: (2-(4-(3-((1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)(nitroso)amino)propyl)-4-oxidopiperazin-1-yl)phenoxy)methanide
N-Nitroso Urapidil Impurity 7
CAT No: CL-URPD-NO-08 CAS No: NA Mol Wt: 431.47 Mol F: C20H27N6O5 Inv Status: Custom Synthesis
Chemical Name: (2-(4-(3-((1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)(nitroso)amino)propyl)-1-oxidopiperazin-1-yl)phenoxy)methanide
N-Nitroso Urapidil Impurity 8
CAT No: CL-URPD-NO-09 CAS No: NA Mol Wt: 281.32 Mol F: C12H19N5O3 Inv Status: Custom Synthesis
Chemical Name: N-(2-((3-aminopropyl)(nitroso)amino)ethyl)-N-(2-methoxyphenyl)nitrous amide
N-Nitroso Urapidil Impurity 9
CAT No: CL-URPD-NO-10 CAS No: NA Mol Wt: 252.32 Mol F: C12H20N4O2 Inv Status: Custom Synthesis
Chemical Name: N-(2-((3-aminopropyl)amino)ethyl)-N-(2-methoxyphenyl)nitrous amide
N-Nitroso Urapidil Impurity 10
CAT No: CL-URPD-NO-11 CAS No: NA Mol Wt: 252.32 Mol F: C12H20N4O2 Inv Status: In Stock
Chemical Name: N-(3-aminopropyl)-N-(2-((2-methoxyphenyl)amino)ethyl)nitrous amide
N-Nitroso Urapidil Impurity 1
CAT No: CL-URPD-NO-13 CAS No: 2219339-64-5 Mol Wt: 221.26 Mol F: C11H15N3O2 Inv Status: In Stock
Chemical Name: 1-(2-Methoxyphenyl)-4-nitrosopiperazine
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