Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Acyclovir, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Acyclovir impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Acyclovir-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.
Our Acyclovir-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.
Acyclovir Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Acyclovir aminocyclopropane 13C carboxylate impurity | Stable Isotopes | CS-O-55652 | 915725-89-2(Unla915725-89-2(Unlabelled)belled) | Enquire |
| Acyclovir aminocyclopropane Impurity-13C | Stable Isotopes | CS-O-55651 | 915725-89-2 | Enquire |
| Acyclovir-13C | Stable Isotopes | CS-O-55648 | 59277-89-3(Unlabelled) | Enquire |
| Acyclovir-d4 | Stable Isotopes | CS-O-02866 | 1185179-33-2 | In Stock |
| Acyclovir-d4 Benzoate | Stable Isotopes | CS-T-100924 | Not Available | Enquire |
| Iso-acyclovir-d4 | Stable Isotopes | CS-T-100145 | Not Available | Enquire |
| N2-Acetyl Acyclovir Benzoate-d4 | Stable Isotopes | CS-T-96388 | Not Available | Enquire |
| N2-Acetyl Acyclovir Benzoate-d5 | Stable Isotopes | CS-T-94405 | Unlabelled: 133186-23-9 | Enquire |
| N2-Acetyl Acyclovir-d4 | Stable Isotopes | CS-T-94392 | 1189728-07-1 | Enquire |
| N-Carboxybenzyl D-Valacyclovir-d4 | Stable Isotopes | CS-T-100684 | Not Available | Enquire |
| N-t-Boc-valacyclovir-d8 | Stable Isotopes | CS-T-100750 | Not Available | Enquire |
| Valacyclovir D8 | Stable Isotopes | CS-O-51696 | 1132753-29-7 | Enquire |
| Valacyclovir-d4 Hydrochloride | Stable Isotopes | CS-O-02873 | 1795786-28-5(unlabeled) | In Stock |
| Acyclovir-d4 L-Leucinate | Stable Isotopes | CS-T-65310 | 1795785-74-8 | Enquire |
| Acyclovir-d4 N,O-Diacetate | Stable Isotopes | CS-T-64352 | 1189728-07-1 | Enquire |
| N-t-Boc-valacyclovir D4 | Stable Isotopes | CS-T-49561 | 1346617-11-5 | Enquire |
| Valacyclovir-d8 HCl (L-valine-d8) | Stable Isotopes | CS-C-01325 | 1279033-32-7 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Acyclovir Sodium | API | CS-M-58357 | 69657-51-8 | In Stock |
| Valacyclovir | API | CS-O-02557 | 124832-26-4 | In Stock |
| Valacyclovir Hydrochloride | API | CS-O-08374 | 124832-27-5 | In Stock |
| Valacyclovir hydrochloride dihydrate | API | CS-O-43172 | 502421-45-6 | Enquire |
| Acyclovir Monophosphate | API | CS-T-01312 | 66341-16-0 | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Formyl Valacyclovir | Metabolite | CS-O-10317 | 847670-62-6 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 8-Hydroxy Acyclovir | Impurity | CS-ED-00860 | 80685-23-0 | Enquire |
| 9-Acetyl-2-amino-1,9-dihydro-6H-purin-6-one | Impurity | CS-EO-00170 | 1195518-98-9 | In Stock |
| 9-Carboxymethoxymethylguanine | Impurity | CS-T-70064 | 80685-22-9 | Enquire |
| Aciclovir Impurity 11 | Impurity | CS-O-56632 | 17576-39-5 | Enquire |
| Aciclovir Impurity O | Impurity | CS-EO-01143 | 2190509-40-9 | In Stock |
| Acyclovir Alaninate | Impurity | CS-O-10408 | 84499-64-9 | In Stock |
| Acyclovir aminocyclopropane Impurity | Impurity | CS-O-55650 | 915725-89-2 | Enquire |
| Acyclovir Impurity 12 | Impurity | CS-T-67055 | 90114-17-3 | Enquire |
| Acyclovir Impurity D | Impurity | CS-O-14853 | 59277-91-7 | Enquire |
| Acyclovir Impurity G | Impurity | CS-O-31083 | 75128-73-3 | In Stock |
| Acyclovir Impurity I | Impurity | CS-O-31054 | 1797832-75-7 | In Stock |
| Acyclovir Impurity L | Impurity | CS-T-16775 | 3056-33-5 | In Stock |
| Acyclovir Impurity M | Impurity | CS-P-00523 | 91702-60-2 | In Stock |
| Acyclovir L-Alaninate | Impurity | CS-T-47491 | 84499-63-8 | In Stock |
| Acyclovir L-Leucinate | Impurity | CS-T-01308 | 142963-69-7 | In Stock |
| Acyclovir N-Methylene Dimer | Impurity | CS-T-64953 | 1797131-64-6 | In Stock |
| Bis Valacyclovir | Impurity | CS-O-06148 | 1356019-51-6 | In Stock |
| D-Valacyclovir | Impurity | CS-ED-01335 | 142963-60-8 | In Stock |
| D-Valacyclovir Hydrochloride | Impurity | CS-T-95893 | 1795786-28-5 | Enquire |
| D-Valacyclovir Hydrochloride | Impurity | CS-T-46208 | 124832-28-6 | Enquire |
| N-Carboxybenzyl D-Valacyclovir | Impurity | CS-T-50322 | 124832-32-2 | In Stock |
| N-t-Boc Valacyclovir | Impurity | CS-T-07735 | 502421-44-5 | In Stock |
| O-Hydroxymethyl Aciclovir | Impurity | CS-O-41548 | 2984992-63-2 | Enquire |
| Valaciclovir EP Impurity C Hydrochloride | Impurity | CS-T-01310 | 1346617-39-7 | Enquire |
| 6-Chloro Acyclovir Acetate | Impurity | CS-T-11144 | 81777-48-2 | Enquire |
| 9-Demethoxyethanol-9-propanol Isoacyclovir | Impurity | CS-T-89136 | 131918-95-1 | Enquire |
| Acyclovir Impurity E | Impurity | CS-P-00521 | 374697-95-7 | Enquire |
| Acyclovir Impurity H | Impurity | CS-P-00522 | 133186-23-9 | Enquire |
| Acyclovir Impurity J | Impurity | CS-T-25749 | 166762-90-9 | Enquire |
| Acyclovir Impurity K | Impurity | CS-P-07022 | 1797131-64-6 (free acid) | Enquire |
| Acyclovir Impurity-K + R | Impurity | CS-O-37627 | Not Available | Enquire |
| Acyclovir N-Ethyl-L-valinate Hydrochloride | Impurity | CS-T-01306 | 1346617-49-9 | Enquire |
| Bis N-Benzyloxycarbonyl-6-O-benzyl valacyclovir | Impurity | CS-BI-00039 | 1356350-92-9 | Enquire |
| Guaninyl Valacyclovir | Impurity | CS-O-33118 | 2519847-26-6 | Enquire |
| Guaninyl Valacyclovir | Impurity | CS-O-06147 | Not Available | Enquire |
| guaninyl valacyclovir EP impurity N | Impurity | CS-EO-00060 | Not Available | Enquire |
| Valacyclovir Valine | Impurity | CS-O-34899 | Not Available | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Di-Nitroso Acyclovir Impurity K | Nitrosamine | CS-O-47876 | ---- | In Stock |
| Mono-nitroso Acyclovir Impurity K | Nitrosamine | CS-O-47875 | Not Available | In Stock |
| N-Nitroso valacyclovir | Nitrosamine | CS-O-49920 | Not Available | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Acyclovir | Secondary Standards | CS-SS-24272-1GM | 59277-89-3 | Enquire |
| Acyclovir | Secondary Standards | CS-SS-24272 | 59277-89-3 | Enquire |
| Acyclovir Related Compound A | Secondary Standards | CS-SS-26076-100MG | 102728-64-3 | Enquire |
| Acyclovir Related Compound F | Secondary Standards | CS-SS-26077-100MG | 110104-37-5 | Enquire |
| Acyclovir Related Compound G | Secondary Standards | CS-SS-26078-100MG | 75128-73-3 | Enquire |
| D-Valacyclovir | Secondary Standards | CS-SS-26247-50MG | 142963-60-8 | Enquire |
| Valacyclovir HCl | Secondary Standards | CS-SS-24573 | 124832-27-5 | Enquire |
| Valacyclovir Related Compound C | Secondary Standards | CS-SS-26144-40MG | 1346617-39-7 | Enquire |
| Valacyclovir Related Compound E | Secondary Standards | CS-SS-26143-50MG | 124832-31-1 | Enquire |
| Valacyclovir Related Compound F | Secondary Standards | CS-SS-26184-50MG | 86150-61-0 | Enquire |
| Valacyclovir Related Compound G | Secondary Standards | CS-SS-25662-500MG | 1122-58-3 | Enquire |
Therapeutic
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Acyclovir | Therapeutic | CS-O-11585 | 59277-89-3 | In Stock |
| Acyclovir EP Impurity R | Therapeutic | CS-P-03017 | Not Available | Enquire |
| Acyclovir Impurity A | Therapeutic | CS-O-08373 | 102728-64-3 | In Stock |
| Acyclovir Impurity F | Therapeutic | CS-T-47067 | 110104-37-5 | In Stock |