Acyclovir Related Compounds & Impurities

Acyclovir is a guanosine nucleoside analogue antiviral that, after selective phosphorylation by viral thymidine kinase, terminates herpesviral DNA chain elongation, used for herpes simplex and varicella-zoster infections.

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 Acyclovir reference standards, pharmacopeial and non-pharmacopeial Acyclovir 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 Acyclovir-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

Acyclovir
Acyclovir
  • CAT. No.A030000
  • CAS. No.59277-89-3
  • Mol. F.C8H11N5O3
  • Mol. W.225.20 g/mol
  • Stock Status:Instock
Product View
Product Compare
Acyclovir Form 1
Acyclovir Form 1
  • CAT. No.A030000B
  • CAS. No.59277-89-3
  • Mol. F.C8H11N5O3
  • Mol. W.225.20 g/mol
  • Stock Status:Instock
Product View
Product Compare
Acyclovir Form 2
Acyclovir Form 2
  • CAT. No.A030000C
  • CAS. No.59277-89-3
  • Mol. F.C8H11N5O3
  • Mol. W.225.09 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir Form 5
Acyclovir Form 5
  • CAT. No.A030000D
  • CAS. No.59277-89-3
  • Mol. F.C8H11N5O3
  • Mol. W.225.20 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir Sodium
Acyclovir Sodium
  • CAT. No.A030000E
  • CAS. No.69657-51-8
  • Mol. F.C8H11N5O3.Na
  • Mol. W.248.19 g/mol
  • Stock Status:Instock
Product View
Product Compare
Acyclovir EP Impurity A
Acyclovir EP Impurity A
  • CAT. No.A030001
  • CAS. No.102728-64-3
  • Mol. F.C10H13N5O4
  • Mol. W.267.24 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity B
Aciclovir EP Impurity B
  • CAT. No.A030002
  • CAS. No.73-40-5
  • Mol. F.C5H5N5O
  • Mol. W.151.10 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir EP Impurity C
Aciclovir EP Impurity C
  • CAT. No.A030003
  • CAS. No.91702-61-3
  • Mol. F.C8H11N5O3
  • Mol. W.225.20 g/mol
  • Stock Status:Instock
Product View
Product Compare
Acyclovir Benzoate
Acyclovir Benzoate
  • CAT. No.A030004
  • CAS. No.59277-91-7
  • Mol. F.C15H15N5O4
  • Mol. W.329.31 g/mol
  • Stock Status:Instock
Product View
Product Compare
Iso-acyclovir
Iso-acyclovir
  • CAT. No.A030005
  • CAS. No.374697-95-7
  • Mol. F.C8H11N5O3
  • Mol. W.225.20 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir EP Impurity F
Aciclovir EP Impurity F
  • CAT. No.A030006
  • CAS. No.110104-37-5
  • Mol. F.C10H13N5O4
  • Mol. W.267.24 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity G
Aciclovir EP Impurity G
  • CAT. No.A030007
  • CAS. No.75128-73-3
  • Mol. F.C12H15N5O5
  • Mol. W.309.27 g/mol
  • Stock Status:Instock
Product View
Product Compare
Acyclovir EP Impurity H
Acyclovir EP Impurity H
  • CAT. No.A030008
  • CAS. No.133186-23-9
  • Mol. F.C17H17N5O5
  • Mol. W.371.34 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity I
Aciclovir EP Impurity I
  • CAT. No.A030009
  • CAS. No.1797832-75-7
  • Mol. F.C14H16N10O4
  • Mol. W.388.34 g/mol
  • Stock Status:Limited Stock
Product View
Product Compare
Acyclovir L-Isoleucinate
Acyclovir L-Isoleucinate
  • CAT. No.A030012
  • CAS. No.142963-63-1
  • Mol. F.C14H22N6O4
  • Mol. W.338.36 g/mol
  • Stock Status:Instock
Product View
Product Compare
Acyclovir Alaninate
Acyclovir Alaninate
  • CAT. No.A030013
  • CAS. No.84499-64-9
  • Mol. F.C11H16N6O4
  • Mol. W.296.28 g/mol
  • Stock Status:Under Synthesis
Product View
Product Compare
Valaciclovir EP Impurity H Hydrochloride
Valaciclovir EP Impurity H Hydrochloride
  • CAT. No.A030013A
  • CAS. No.84499-63-8
  • Mol. F.C11H16N6O4.HCl
  • Mol. W.332.74 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity J
Aciclovir EP Impurity J
  • CAT. No.A030016
  • CAS. No.166762-90-9
  • Mol. F.C14H16N10O4
  • Mol. W.388.34 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity L
Aciclovir EP Impurity L
  • CAT. No.A030017
  • CAS. No.3056-33-5
  • Mol. F.C9H9N5O3
  • Mol. W.235.20 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity K
Aciclovir EP Impurity K
  • CAT. No.A030018
  • CAS. No.1797131-64-6
  • Mol. F.C17H22N10O6
  • Mol. W.462.43 g/mol
  • Stock Status:Under synthesis
Product View
Product Compare
Acyclovir EP Impurity K Disodium Salt
Acyclovir EP Impurity K Disodium Salt
  • CAT. No.A030018A
  • CAS. No.NA
  • Mol. F.C17H20N10O6Na2
  • Mol. W.506.38 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir EP Impurity P
Aciclovir EP Impurity P
  • CAT. No.A030019
  • CAS. No.23169-33-7
  • Mol. F.C7H9N5O2
  • Mol. W.195.18 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir EP Impurity Q
Aciclovir EP Impurity Q
  • CAT. No.A030020
  • CAS. No.NA
  • Mol. F.2(C9H13N5O4)
  • Mol. W.510.40 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir EP Impurity M
Aciclovir EP Impurity M
  • CAT. No.A030021
  • CAS. No.91702-60-2
  • Mol. F.C12H15N5O5
  • Mol. W.309.28 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir EP Impurity R
Aciclovir EP Impurity R
  • CAT. No.A030022
  • CAS. No.NA
  • Mol. F.C17H22N10O6
  • Mol. W.462.42 g/mol
  • Stock Status:Under Synthesis
Product View
Product Compare
Acyclovir Impurity O
Acyclovir Impurity O
  • CAT. No.A030023
  • CAS. No.2190509-40-9
  • Mol. F.C9H13N5O4
  • Mol. W.255.23 g/mol
  • Stock Status:Under Synthesis
Product View
Product Compare
Triacetyl Methoxyglycerin
Triacetyl Methoxyglycerin
  • CAT. No.A030024
  • CAS. No.86357-13-3
  • Mol. F.C10H16O7
  • Mol. W.248.23 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir Impurity 6
Aciclovir Impurity 6
  • CAT. No.A030025
  • CAS. No.80685-22-9
  • Mol. F.C8H9N5O4
  • Mol. W.239.19 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 7
Aciclovir Impurity 7
  • CAT. No.A030026
  • CAS. No.80685-23-0
  • Mol. F.C8H11N5O4
  • Mol. W.241.20 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
N-Acetylguanine Aciclovir
N-Acetylguanine Aciclovir
  • CAT. No.A030027
  • CAS. No.19962-37-9
  • Mol. F.C7H7N5O2
  • Mol. W.193.16 g/mol
  • Stock Status:Instock
Product View
Product Compare
N2-Acetyl Acyclovir Methyl Acetate
N2-Acetyl Acyclovir Methyl Acetate
  • CAT. No.A030029
  • CAS. No.NA
  • Mol. F.C13H17N5O6
  • Mol. W.339.30 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
1-[(2-hydroxyethoxy)methyl]-7-imino-1,3,6,8-tetraazaspiro[4.4]nonane-2,4,9-trione
1-[(2-hydroxyethoxy)methyl]-7-imino-1,3,6,8-tetraazaspiro[4.4]nonane-2,4,9-trione
  • CAT. No.A030030
  • CAS. No.874769-58-1
  • Mol. F.C8H11N5O5
  • Mol. W.257.21 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
5-(((2-Hydroxyethoxy)methyl)amino)-2-imino-2,3-dihydro-4H-imidazol-4-one
5-(((2-Hydroxyethoxy)methyl)amino)-2-imino-2,3-dihydro-4H-imidazol-4-one
  • CAT. No.A030031
  • CAS. No.874769-59-2
  • Mol. F.C6H10N4O3
  • Mol. W.186.17 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
5,5-Diamino-4-(((2-hydroxyethoxy)methyl)amino)oxazol-2(5H)-one
5,5-Diamino-4-(((2-hydroxyethoxy)methyl)amino)oxazol-2(5H)-one
  • CAT. No.A030032
  • CAS. No.NA
  • Mol. F.C6H12N4O4
  • Mol. W.204.18 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
9-Carboxymethoxymethylguanine
9-Carboxymethoxymethylguanine
  • CAT. No.A030033
  • CAS. No.80685-22-9
  • Mol. F.C8H9N5O4
  • Mol. W.239.19 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Hydroxyacetone
Hydroxyacetone
  • CAT. No.A030034
  • CAS. No.116-09-6
  • Mol. F.C3H6O2
  • Mol. W.74.08 g/mol
  • Stock Status:Instock
Product View
Product Compare
Aciclovir Impurity 2
Aciclovir Impurity 2
  • CAT. No.A030035
  • CAS. No.1417988-85-2
  • Mol. F.C18H20N10O6
  • Mol. W.472.42 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 1
Aciclovir Impurity 1
  • CAT. No.A030036
  • CAS. No.1195518-98-9
  • Mol. F.C7H7N5O2
  • Mol. W.193.16 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir EP Impurity N
Aciclovir EP Impurity N
  • CAT. No.A030037
  • CAS. No.NA
  • Mol. F.C13H17N5O6
  • Mol. W.339.30 g/mol
  • Stock Status:Instock
Product View
Product Compare
2-Oxa-1,4-butanediol diacetate
2-Oxa-1,4-butanediol diacetate
  • CAT. No.A030038
  • CAS. No.59278-00-1
  • Mol. F.C7H12O5
  • Mol. W.176.17 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir L-Leucinate
Acyclovir L-Leucinate
  • CAT. No.A030040
  • CAS. No.142963-69-7
  • Mol. F.C14H23ClN6O4
  • Mol. W.374.82 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Di-Nitroso of Aciclovir Impurity K
Di-Nitroso of Aciclovir Impurity K
  • CAT. No.A030041
  • CAS. No.NA
  • Mol. F.C17H20N12O8
  • Mol. W.520.42 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Mono-Nitroso of Aciclovir Impurity K
Mono-Nitroso of Aciclovir Impurity K
  • CAT. No.A030042
  • CAS. No.NA
  • Mol. F.C17H21N11O7
  • Mol. W.491.42 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
N-Nitroso Acyclovir
N-Nitroso Acyclovir
  • CAT. No.A030043
  • CAS. No.NA
  • Mol. F.C8H10N6O4
  • Mol. W.254.20 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
2-Amino-9-((2-((2-amino-6-oxo-1,6,7,8-tetrahydro-9H-purin-9-yl)methoxy)ethoxy)methyl)-1,9-dihydro-6H-purin-6-one
2-Amino-9-((2-((2-amino-6-oxo-1,6,7,8-tetrahydro-9H-purin-9-yl)methoxy)ethoxy)methyl)-1,9-dihydro-6H-purin-6-one
  • CAT. No.A030044
  • CAS. No.NA
  • Mol. F.C14H18N10O4
  • Mol. W.390.36 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir triphosphate
Acyclovir triphosphate
  • CAT. No.A030045
  • CAS. No.66341-18-2
  • Mol. F.C8H14N5O12P3
  • Mol. W.465.14 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
N7-(2-Hydroxyethyl)guanine
N7-(2-Hydroxyethyl)guanine
  • CAT. No.A030046
  • CAS. No.53498-52-5
  • Mol. F.C7H9N5O2
  • Mol. W.195.18 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir Sodium Dihydrate
Acyclovir Sodium Dihydrate
  • CAT. No.A030047
  • CAS. No.261506-45-0
  • Mol. F.C8H11N5O3.2H2O.Na
  • Mol. W.284.23 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 8
Aciclovir Impurity 8
  • CAT. No.A030048
  • CAS. No.1195360-46-3
  • Mol. F.C11H18O7
  • Mol. W.262.26 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 13
Aciclovir Impurity 13
  • CAT. No.A030049
  • CAS. No.NA
  • Mol. F.C11H18O8
  • Mol. W.278.26 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
O-Hydroxymethylaciclovir
O-Hydroxymethylaciclovir
  • CAT. No.A030050
  • CAS. No.NA
  • Mol. F.C9H13N5O4
  • Mol. W.255.23 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir Monophosphate
Acyclovir Monophosphate
  • CAT. No.A030051
  • CAS. No.66341-16-0
  • Mol. F.C8H12N5O6P
  • Mol. W.305.18 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 3
Aciclovir Impurity 3
  • CAT. No.A030052
  • CAS. No.NA
  • Mol. F.C18H26N10O8
  • Mol. W.510.46 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Acyclovir Impurity 1
Acyclovir Impurity 1
  • CAT. No.A030053
  • CAS. No.137226-08-5
  • Mol. F.C9H9N5O3
  • Mol. W.235.20 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 5
Aciclovir Impurity 5
  • CAT. No.A030054
  • CAS. No.1934762-30-7
  • Mol. F.C6H7N5O2
  • Mol. W.181.20 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare
Aciclovir Impurity 9
Aciclovir Impurity 9
  • CAT. No.A030055
  • CAS. No.868368-35-8
  • Mol. F.C5H7N5O2
  • Mol. W.169.10 g/mol
  • Stock Status:Custom Synthesis
Product View
Product Compare

Isotope Labelled Compounds

Acyclovir D4
Acyclovir D4
  • CAT. No.A030011
  • CAS. No.1185179-33-2
  • Mol. F.C8H7D4N5O3
  • Mol. W.229.23 g/mol
  • Stock Status:Instock
Product View
Product Compare