Levoceterizine Hydrochloride Related Compounds & Impurities

Levocetirizine Hydrochloride is the active R-enantiomer of cetirizine, a potent non-sedating H1-antihistamine used for allergic rhinitis and chronic urticaria.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Levoceterizine Hydrochloride reference standards, pharmacopeial and non-pharmacopeial Levoceterizine Hydrochloride impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Levoceterizine Hydrochloride-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Levocitrizine DiHydrochloride
Levocitrizine DiHydrochloride
  • CAT. No.L040000
  • CAS. No.130018-87-0
  • Mol. F.C21H27Cl3N2O3
  • Mol. W.461.81 g/mol
  • Stock Status:Instock
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Levocetirizine
Levocetirizine
  • CAT. No.L040000B
  • CAS. No.130018-77-8
  • Mol. F.C21H25ClN2O3
  • Mol. W.388.89 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine EP Impurity-A
Levocetirizine EP Impurity-A
  • CAT. No.L040001
  • CAS. No.303-26-4
  • Mol. F.C17H19ClN2
  • Mol. W.286.80 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine EP Impurity C Dihydrochloride
Levocetirizine EP Impurity C Dihydrochloride
  • CAT. No.L040003
  • CAS. No.NA
  • Mol. F.C21H25ClN2O3.2HCl
  • Mol. W.461.88 g/mol
  • Stock Status:Instock
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Levocetrizine EP Impurity D Dihydrochloride
Levocetrizine EP Impurity D Dihydrochloride
  • CAT. No.L040004
  • CAS. No.346451-15-8(freebase)
  • Mol. F.C30H30Cl4N2
  • Mol. W.560.38 g/mol
  • Stock Status:Instock
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Levocetrizine EP Impurity E
Levocetrizine EP Impurity E
  • CAT. No.L040005
  • CAS. No.83881-56-5
  • Mol. F.C23H31N2O4Cl3
  • Mol. W.505.86 g/mol
  • Stock Status:Limited Stock
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Deschloro Cetirizine Dihydrochloride
Deschloro Cetirizine Dihydrochloride
  • CAT. No.L040006
  • CAS. No.83881-54-3
  • Mol. F.C21H28Cl2N2O3
  • Mol. W.427.36 g/mol
  • Stock Status:Instock
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Cetirizine EP Impurity G Dihydrochloride
Cetirizine EP Impurity G Dihydrochloride
  • CAT. No.L040007
  • CAS. No.164726-80-1
  • Mol. F.C19H23ClN2O.2HCl
  • Mol. W.403.77 g/mol ; 330.85 g/mol (as a base)
  • Stock Status:Instock
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Levocetrizine EP Impurity G Monohydrochloride
Levocetrizine EP Impurity G Monohydrochloride
  • CAT. No.L040007A
  • CAS. No.NA
  • Mol. F.C19H23ClN2O.HCl
  • Mol. W.367.31 g/mol; 330.85 g/mol ( as free base)
  • Stock Status:Under Synthesis
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Levocetirizine EP Impurity H
Levocetirizine EP Impurity H
  • CAT. No.L040007B
  • CAS. No.109806-71-5
  • Mol. F.C19H23ClN2O
  • Mol. W.330.85 g/mol
  • Stock Status:Instock
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Levocetrizine Impurity I
Levocetrizine Impurity I
  • CAT. No.L040008
  • CAS. No.83881-46-3
  • Mol. F.C22H27ClN2O3
  • Mol. W.402.92 g/mol
  • Stock Status:Instock
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Levocetirizine N-Oxide
Levocetirizine N-Oxide
  • CAT. No.L040009
  • CAS. No.442863-80-1
  • Mol. F.C21H25ClN2O4
  • Mol. W.404.89 g/mol
  • Stock Status:Instock
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Dextrocetirizine Dihydrochloride
Dextrocetirizine Dihydrochloride
  • CAT. No.L040010
  • CAS. No.163837-48-7
  • Mol. F.C21H25ClN2O3.2HCl
  • Mol. W.461.81 g/mol
  • Stock Status:Instock
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Levocetrizine Benzhydrol Impurity
Levocetrizine Benzhydrol Impurity
  • CAT. No.L040012
  • CAS. No.119-56-2
  • Mol. F.C13H11ClO
  • Mol. W.218.68 g/ mol
  • Stock Status:Custom Synthesis
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Chlorobenzhydryl Piperazine
Chlorobenzhydryl Piperazine
  • CAT. No.L040013
  • CAS. No.300543-56-0
  • Mol. F.C17H19ClN2
  • Mol. W.286.80 g/mol
  • Stock Status:Instock
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Levocetrizine Impurity 14
Levocetrizine Impurity 14
  • CAT. No.L040014
  • CAS. No.NA
  • Mol. F.C21H25ClN2O3
  • Mol. W.388.89 g/ mol
  • Stock Status:Custom Synthesis
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Levocetrizine Imine Impurity
Levocetrizine Imine Impurity
  • CAT. No.L040015
  • CAS. No.2362-79-0
  • Mol. F.C13H10ClN
  • Mol. W.215.67 g/ mol
  • Stock Status:Instock
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Levocetirizine Amide Impurity
Levocetirizine Amide Impurity
  • CAT. No.L040016
  • CAS. No.909779-33-5
  • Mol. F.C21H26ClN3O2
  • Mol. W.387.90 g/mol
  • Stock Status:Instock
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Levocetirizine Impurity 10
Levocetirizine Impurity 10
  • CAT. No.L040018
  • CAS. No.42137-88-2
  • Mol. F.C11H15Cl2NO2S
  • Mol. W.296.21 g/mol
  • Stock Status:Instock
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Levocetirizine Impurity 15
Levocetirizine Impurity 15
  • CAT. No.L040019
  • CAS. No.474654-20-1
  • Mol. F.C24H25ClN2O2S
  • Mol. W.440.99 g/mol
  • Stock Status:Instock
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Levocetirizine Amide Impurity Hydrochloride
Levocetirizine Amide Impurity Hydrochloride
  • CAT. No.L040020
  • CAS. No.NA
  • Mol. F.C21H26ClN3O2.HCl
  • Mol. W.424.36 g/mol
  • Stock Status:Under Synthesis
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Levocetirizine Amide Impurity Dihydrochloride
Levocetirizine Amide Impurity Dihydrochloride
  • CAT. No.L040020B
  • CAS. No.909779-33-5(freebase)
  • Mol. F.C21H26ClN3O22HCl
  • Mol. W.460.82 g/mol ; 387.94 g/mol (free base)
  • Stock Status:Instock
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Levocetirizine Impurity 11
Levocetirizine Impurity 11
  • CAT. No.L040023
  • CAS. No.163837-57-8
  • Mol. F.C13H12ClN
  • Mol. W.217.69 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Impurity 7
Levocetirizine Impurity 7
  • CAT. No.L040024
  • CAS. No.1391052-52-0
  • Mol. F.C23H23ClN2O2S
  • Mol. W.427.00 g/mol
  • Stock Status:Instock
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Levocetirizine EP Impurity C Dihydrochloride
Levocetirizine EP Impurity C Dihydrochloride
  • CAT. No.L040025
  • CAS. No.NA
  • Mol. F.C21H25ClN2O3.2HCl
  • Mol. W.461.81 g/mol
  • Stock Status:Custom Synthesis
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(R)-1-[(4-Chlorophenyl)phenylmethyl]piperazine
(R)-1-[(4-Chlorophenyl)phenylmethyl]piperazine
  • CAT. No.L040027
  • CAS. No.300543-56-0
  • Mol. F.C17H19ClN2
  • Mol. W.286.80 g/mol
  • Stock Status:Custom Synthesis
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2,2-bis[4-[(4-chlorophenyl)-1-phenylmethyl]piperazin-1-yl]ethoxy]acetic acid
2,2-bis[4-[(4-chlorophenyl)-1-phenylmethyl]piperazin-1-yl]ethoxy]acetic acid
  • CAT. No.L040028
  • CAS. No.NA
  • Mol. F.C21H25ClN2O3
  • Mol. W.388.89 g/mol
  • Stock Status:Custom Synthesis
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N,N`-Dibenzylglycinamide
N,N`-Dibenzylglycinamide
  • CAT. No.L040029
  • CAS. No.1089-31-2
  • Mol. F.C16H18N2O
  • Mol. W.254.33 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Benzyl Compound
Levocetirizine Benzyl Compound
  • CAT. No.L040030
  • CAS. No.873406-11-2
  • Mol. F.C25H27ClN2O
  • Mol. W.406.95 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine N-Benzyl Amide
Levocetirizine N-Benzyl Amide
  • CAT. No.L040031
  • CAS. No.1150310-68-1
  • Mol. F.C28H32ClN3O2
  • Mol. W.478.03 g/mol
  • Stock Status:Instock
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Cetirizine EP Impurity E
Cetirizine EP Impurity E
  • CAT. No.L040032
  • CAS. No.682323-77-9
  • Mol. F.C23H29ClN2O4
  • Mol. W.432.94 g/mol
  • Stock Status:Custom Synthesis
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2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)acetic acid
2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)acetic acid
  • CAT. No.L040034
  • CAS. No.113740-61-7
  • Mol. F.C19H21ClN2O2
  • Mol. W.344.84 g/mol
  • Stock Status:Custom Synthesis
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3-Chloro Cetirizine Dihydrochloride
3-Chloro Cetirizine Dihydrochloride
  • CAT. No.L040035
  • CAS. No.1232460-29-5
  • Mol. F.C21H25ClN2O3.2HCl
  • Mol. W.461.81 g/mol
  • Stock Status:Custom Synthesis
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Ortho Chloro Levocetrizine
Ortho Chloro Levocetrizine
  • CAT. No.L040036
  • CAS. No.5267-36-7
  • Mol. F.C13H12ClN.HCl
  • Mol. W.254.16 g/mol
  • Stock Status:Instock
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Levocetirizine Amide Impurity J
Levocetirizine Amide Impurity J
  • CAT. No.L040037
  • CAS. No.909779-33-5
  • Mol. F.C21H26ClN3O2
  • Mol. W.387.90 g/mol
  • Stock Status:Limited Stock
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Cetirizine N-(2-Ethoxyacetate)
Cetirizine N-(2-Ethoxyacetate)
  • CAT. No.L040038
  • CAS. No.NA
  • Mol. F.C25H31ClN2O6
  • Mol. W.490.98 g/mol
  • Stock Status:Custom Synthesis
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4-((4-chlorophenyl)(phenyl)methyl)-1-(2-hydroxyethyl)piperazin-2-one
4-((4-chlorophenyl)(phenyl)methyl)-1-(2-hydroxyethyl)piperazin-2-one
  • CAT. No.L040039
  • CAS. No.NA
  • Mol. F.C19H21ClN2O2
  • Mol. W.344.84 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Impurity 7
Levocetirizine Impurity 7
  • CAT. No.L040040
  • CAS. No.2433583-58-3
  • Mol. F.C19H21ClN2O2
  • Mol. W.344.84 g/mol
  • Stock Status:Custom Synthesis
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1-((4-chlorophenyl)(phenyl)methyl)-4-(2-hydroxyethyl)piperazin-2-one
1-((4-chlorophenyl)(phenyl)methyl)-4-(2-hydroxyethyl)piperazin-2-one
  • CAT. No.L040041
  • CAS. No.NA
  • Mol. F.C19H21ClN2O2
  • Mol. W.344.84 g/mol
  • Stock Status:Custom Synthesis
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(+)-4-Chloro benzhydryl amine Hydrochloride
(+)-4-Chloro benzhydryl amine Hydrochloride
  • CAT. No.L040042
  • CAS. No.5267-39-0
  • Mol. F.C13H13Cl2N
  • Mol. W.254.16 g/mol
  • Stock Status:Custom Synthesis
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2-(4-((4-chlorophenyl)(phenyl)methyl)-1-(2-hydroxyethyl)piperazin-1-ium-1-yl)ethanolate
2-(4-((4-chlorophenyl)(phenyl)methyl)-1-(2-hydroxyethyl)piperazin-1-ium-1-yl)ethanolate
  • CAT. No.L040043
  • CAS. No.NA
  • Mol. F.C21H27ClN2O2
  • Mol. W.374.90 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Impurity 9
Levocetirizine Impurity 9
  • CAT. No.L040044
  • CAS. No.942283-97-8
  • Mol. F.C24H25ClN2O2S
  • Mol. W.440.99 g/mol
  • Stock Status:Custom Synthesis
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Cetirizine S-Isomer
Cetirizine S-Isomer
  • CAT. No.L040046
  • CAS. No.130018-89-2
  • Mol. F.C21H26Cl2N2O3
  • Mol. W.425.35 g/mol
  • Stock Status:Custom Synthesis
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Cetirizine 3-Chloro
Cetirizine 3-Chloro
  • CAT. No.L040047
  • CAS. No.1232460-31-9
  • Mol. F.C21H25ClN2O3
  • Mol. W.388.89 g/mol
  • Stock Status:Custom Synthesis
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(R)-(4-Chlorophenyl)(phenyl)methanamine (2R,3R)-2,3-dihydroxysuccinate
(R)-(4-Chlorophenyl)(phenyl)methanamine (2R,3R)-2,3-dihydroxysuccinate
  • CAT. No.L040048
  • CAS. No.1159295-40-5
  • Mol. F.C17H18ClNO6
  • Mol. W.367.78 g/mol
  • Stock Status:Custom Synthesis
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(R)-1-(4-Chlorophenyl)-1-phenylmethanamine hydrochloride
(R)-1-(4-Chlorophenyl)-1-phenylmethanamine hydrochloride
  • CAT. No.L040049
  • CAS. No.451503-29-0
  • Mol. F.C13H13Cl2N
  • Mol. W.254.16 g/mol
  • Stock Status:Limited Stock
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Levocetirizine Impurity 13
Levocetirizine Impurity 13
  • CAT. No.L040050
  • CAS. No.NA
  • Mol. F.C24H26Cl2N2O2S
  • Mol. W.477.40 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Ethyl Ester
Levocetirizine Ethyl Ester
  • CAT. No.L040051
  • CAS. No.1116338-10-3
  • Mol. F.C23H29ClN2O3
  • Mol. W.416.94 g/mol
  • Stock Status:Custom Synthesis
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Levocetrizine Impurity 16
Levocetrizine Impurity 16
  • CAT. No.L040052
  • CAS. No.55095-13-1
  • Mol. F.C13H12ClN
  • Mol. W.217.69 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Impurity 14
Levocetirizine Impurity 14
  • CAT. No.L040053
  • CAS. No.1172851-76-1
  • Mol. F.C21H23ClN2O4
  • Mol. W.402.87 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Impurity 17
Levocetirizine Impurity 17
  • CAT. No.L040054
  • CAS. No.NA
  • Mol. F.C33H45ClN2O13
  • Mol. W.713.17 g/mol
  • Stock Status:Custom Synthesis
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Levocetirizine Impurity 16
Levocetirizine Impurity 16
  • CAT. No.L040055
  • CAS. No.NA
  • Mol. F.C33H45ClN2O13
  • Mol. W.713.17 g/mol
  • Stock Status:Custom Synthesis
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(R)-1-((3-Chlorophenyl) (phenyl)methyl)piperazine
(R)-1-((3-Chlorophenyl) (phenyl)methyl)piperazine
  • CAT. No.L040058
  • CAS. No.NA
  • Mol. F.C17H19ClN2
  • Mol. W.286.80 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Levocetirizine-D4 Dihydrochloride
Levocetirizine-D4 Dihydrochloride
  • CAT. No.L040022
  • CAS. No.1133210-23-7
  • Mol. F.C21H23D4Cl3N2O3
  • Mol. W.465.83 g/mol
  • Stock Status:Instock
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Levocetirizine-d4
Levocetirizine-d4
  • CAT. No.L040022A
  • CAS. No.NA
  • Mol. F.C21H21D4ClN2O3
  • Mol. W.392.90 g/mol
  • Stock Status:Custom Synthesis
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Cetirizine EP Impurity A D8
Cetirizine EP Impurity A D8
  • CAT. No.L040056
  • CAS. No.1189925-23-2
  • Mol. F.C17H11ClD8N2
  • Mol. W.294.85 g/mol
  • Stock Status:Instock
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1,4bis((4-chlorophenyl)(phenyl)methyl)piperazine D8
1,4bis((4-chlorophenyl)(phenyl)methyl)piperazine D8
  • CAT. No.L040057
  • CAS. No.NA
  • Mol. F.C30H20D8Cl2N2
  • Mol. W.495.51 g/mol
  • Stock Status:Instock
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