Impurity Reference Standard - Products

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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Atenolol and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Atenolol 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 Atenolol-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.

Atenolol

CAT No: CL-ATLO-01 CAS No: 29122-68-7 Mol Wt: 266.3 Mol F: C14H22N2O3 Inv Status: Custom Synthesis

Chemical Name: 2-[4-[(2RS)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy]phenyl]acetamide

Atenolol EP Impurity A

CAT No: CL-ATLO-02 CAS No: 17194-82-0 Mol Wt: 151.2 Mol F: C8H9NO2 Inv Status: In Stock

Chemical Name: 4-Hydroxyphenylacetamide ; 2-(4-Hydroxyphenyl)acetamide

Atenolol EP Impurity B

CAT No: CL-ATLO-03 CAS No: 61698-76-8 Mol Wt: 225.2 Mol F: C11H15NO4 Inv Status: In Stock

Chemical Name: 2-[4-[(2RS)-2,3-Dihydroxypropoxy]phenyl]acetamide

Atenolol EP Impurity C

CAT No: CL-ATLO-04 CAS No: 29122-69-8 Mol Wt: 207.2 Mol F: C11H13NO3 Inv Status: In Stock

Chemical Name: 2-[4-[[(2RS)-Oxiran-2-yl]methoxy]phenyl]acetamide

Atenolol EP Impurity D

CAT No: CL-ATLO-05 CAS No: 115538-83-5 Mol Wt: 243.7 Mol F: C11H14ClNO3 Inv Status: In Stock

Chemical Name: 2-(4-(3-chloro-2-hydroxypropoxy)phenyl)acetamide

Atenolol EP Impurity E

CAT No: CL-ATLO-06 CAS No: 141650-31-9 Mol Wt: 358.4 Mol F: C19H22N2O5 Inv Status: In Stock

Chemical Name: 2,2′-[(2-Hydroxypropane-1,3-diyl)bis(oxy-4,1-phenylene)]diacetamide

Atenolol EP Impurity F

CAT No: CL-ATLO-07 CAS No: 87619-83-8 Mol Wt: 473.6 Mol F: C25H35N3O6 Inv Status: In Stock

Chemical Name: 2,2'-((((isopropylazanediyl)bis(2-hydroxypropane-3,1-diyl))bis(oxy))bis(4,1-phenylene))diacetamide

Atenolol EP Impurity G

CAT No: CL-ATLO-08 CAS No: 56392-14-4 Mol Wt: 267.3 Mol F: C14H21NO4 Inv Status: In Stock

Chemical Name: 2-(4-(2-Hydroxy-3-(isopropylamino)propoxy)phenyl)acetic acid

Atenolol EP Impurity H

CAT No: CL-ATLO-09 CAS No: 29277-73-4 Mol Wt: 248.3 Mol F: C14H20N2O2 Inv Status: In Stock

Chemical Name: [4-[(2RS)-2-Hydroxy-3-[(propan-2-yl)amino]propoxy]phenyl]acetonitrile

Atenolol R-Isomer

CAT No: CL-ATLO-10 CAS No: 56715-13-0 Mol Wt: 266.3 Mol F: C14H22N2O3 Inv Status: Custom Synthesis

Chemical Name: (+)-2-[4-[(2R)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy] phenyl] acetamide

Atenolol S-Isomer

CAT No: CL-ATLO-11 CAS No: 93379-54-5 Mol Wt: 266.3 Mol F: C14H22N2O3 Inv Status: Custom Synthesis

Chemical Name: (-)-2-[4-[(2S)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy] phenyl] acetamide

Atenolol 2-Hydroxy Impurity

CAT No: CL-ATLO-12 CAS No: 68373-10-4 Mol Wt: 282.3 Mol F: C14H22N2O4 Inv Status: Custom Synthesis

Chemical Name: 2-Hydroxy-2-(4-(2-hydroxy-3-(isopropylamino)propoxy)phenyl)acetamide

Atenolol Cyano Epoxide

CAT No: CL-ATLO-13 CAS No: 35198-42-6 Mol Wt: 189.2 Mol F: C11H11NO2 Inv Status: Custom Synthesis

Chemical Name: 2-[4-[[(2RS)-Oxiran-2-yl]methoxy]phenyl]acetonitrile

Atenolol EP Impurity I

CAT No: CL-ATLO-14 CAS No: 1797116-92-7 Mol Wt: 252.3 Mol F: C13H20N2O3 Inv Status: Custom Synthesis

Chemical Name: 2-(4-(3-(Ethylamino)-2-hydroxypropoxy)phenyl)acetamide

Atenolol Impurity 1

CAT No: CL-ATLO-15 CAS No: 1006729-91-4 Mol Wt: 209.2 Mol F: C11H15NO3 Inv Status: Custom Synthesis

Chemical Name: 2-(4-(2-hydroxypropoxy)phenyl)acetamide

Atenolol EP Impurity J

CAT No: CL-ATLO-16 CAS No: 81346-71-6 Mol Wt: 224.3 Mol F: C11H16N2O3 Inv Status: Custom Synthesis

Chemical Name: 2-[4-[(2RS)-3-Amino-2-hydroxypropoxy]phenyl]acetamide

Atenolol Amine Impurity

CAT No: CL-ATLO-17 CAS No: 1042779-86-1 Mol Wt: 210.2 Mol F: C10H14N2O3 Inv Status: Custom Synthesis

Chemical Name: 4-(3-Amino-2-hydroxypropoxy)benzamide

Atenolol b-D-Glucuronide

CAT No: CL-ATLO-18 CAS No: 889359-84-6 Mol Wt: 442.5 Mol F: C20H30N2O9 Inv Status: Custom Synthesis

Chemical Name: (2S,3S,4S,5R,6R)-6-((1-(4-(2-Amino-2-oxoethyl)phenoxy)-3-(isopropylamino)propan-2-yl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid

Atenolol EP Impurity G (sodium salt)

CAT No: CL-ATLO-19 CAS No: NA Mol Wt: 266.3 : 23.0 Mol F: C14H20NO4 : Na Inv Status: Custom Synthesis

Chemical Name: Sodium [4-[(2RS)-2-hydroxy-3-[(propan-2-yl)amino]propoxy]phenyl]acetate

Atenolol Impurity 2

CAT No: CL-ATLO-20 CAS No: 156-38-7 Mol Wt: 152.15 Mol F: C8H8O3 Inv Status: Custom Synthesis

Chemical Name: 4-Hydroxyphenylacetic Acid

Atenolol Impurity 3

CAT No: CL-ATLO-21 CAS No: 13244-75-2 Mol Wt: 168.1 Mol F: C8H8O4 Inv Status: Custom Synthesis

Chemical Name: (S)-2-Hydroxy-2-(4-hydroxyphenyl)acetic acid

Atenolol Impurity 4

CAT No: CL-ATLO-22 CAS No: 1198-84-1 Mol Wt: 168.1 Mol F: C8H8O4 Inv Status: Custom Synthesis

Chemical Name: 2-Hydroxy-2-(4-hydroxyphenyl)acetic acid

Atenolol D7

CAT No: CL-ATLO-23 CAS No: 1202864-50-3 Mol Wt: 273.4 Mol F: C14H15D7N2O3 Inv Status: Custom Synthesis

Chemical Name: 2-(4-(2-Hydroxy-3-((propan-2-yl-d7)amino)propoxy)phenyl)acetamide

(R)-Atenolol D7

CAT No: CL-ATLO-24 CAS No: 1309283-25-7 Mol Wt: 273.4 Mol F: C14H15D7N2O3 Inv Status: Custom Synthesis

Chemical Name: (R)-2-(4-(2-Hydroxy-3-((propan-2-yl-d7)amino)propoxy)phenyl)acetamide

(S)-Atenolol D7

CAT No: CL-ATLO-25 CAS No: 1309283-20-2 Mol Wt: 273.4 Mol F: C14H15D7N2O3 Inv Status: Custom Synthesis

Chemical Name: (S)-2-(4-(2-Hydroxy-3-((propan-2-yl-d7)amino)propoxy)phenyl)acetamide

Atenolol Impurity 6

CAT No: CL-ATLO-26 CAS No: 1159210-06-6 Mol Wt: 294.4 Mol F: C15H22N2O4 Inv Status: In Stock

Chemical Name: 2-(4-(2-hydroxy-3-(N-isopropylformamido)propoxy)phenyl)acetamide

Atenolol N-Acetyl

CAT No: CL-ATLO-27 CAS No: NA Mol Wt: 308.3 Mol F: C16H24N2O4 Inv Status: Custom Synthesis

Chemical Name: N-(3-(4-(2-amino-2-oxoethyl)phenoxy)-2-hydroxypropyl)-N-isopropylacetamide

Type:Impurity Reference Standard

Total Products: 27

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