Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Naphthol, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Naphthol 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 Naphthol-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 Naphthol-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.
Naphthol Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 5-Methoxy-2-methyl-a-naphthol-d3 | Stable Isotopes | CS-T-101146 | 79795-25-8(Unlabelled) | Enquire |
| 6-Bromo-2-naphthol-d6 | Stable Isotopes | CS-T-101785 | Not Available | Enquire |
| 1-Naphthol-13C10 | Stable Isotopes | CS-T-83257 | 1329509-54-7 | Enquire |
| 1-Naphthol-D7 -D-Glucuronide Sodium Salt | Stable Isotopes | CS-T-63082 | 83833-12-9(Unlabeled) | Enquire |
| 1-Naphthol-D7 β-D-Glucuronide Sodium Salt | Stable Isotopes | CS-T-95477 | Not Available | Enquire |
| 2-Naphthol D7 | Stable Isotopes | CS-T-59102 | 78832-54-9 | Enquire |
| 2-Naphthol-13C10 | Stable Isotopes | CS-T-83746 | 1346600-24-5 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Alpha-Naphtholbenzein | API | CS-O-43051 | 6948-88-5 | In Stock |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 6-Amidino-2-naphthol Hydrochloride | Metabolite | CS-T-01830 | 66217-10-5 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (4S)-(3',4'-Dichlorophenyl)-3,4-dihydro-1,2-epoxy-1-O-trieth... | Impurity | CS-T-52649 | 1217528-57-8 | Enquire |
| (4S)-(3',4'-Dichlorophenyl)-3,4-dihydro-1-O-triethylsilyl-1-... | Impurity | CS-T-17672 | 1217778-10-3 | Enquire |
| 1-(Morpholin-4-ylmethyl)-2-naphthol | Impurity | CS-M-47133 | 27438-39-7 | Enquire |
| 1-Naphthol-5-sulfonic acid | Impurity | CS-DL-01083 | 117-59-9 | Enquire |
| 2-Naphthol-6,8-disulfonic acid disodium salt | Impurity | CS-ED-42005 | 842-19-3 | Enquire |
| 3,4-Dihydro-7-methoxy-1-naphthol Acetate | Impurity | CS-T-53152 | 20176-04-9 | Enquire |
| 7-Amino-2-naphthol hydrochloride | Impurity | CS-M-25450 | 51761-16-1 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-Naphthol | Intermediate | CS-T-59101 | 135-19-3 | In Stock |
| 5,8-Dihydro-1-naphthol | Intermediate | CS-T-18904 | 27673-48-9 | In Stock |
| 5-Amino-1-naphthol | Intermediate | CS-O-11189 | 83-55-6 | In Stock |
| 6-Amidino-2-naphthol methanesulfonic acid | Intermediate | CS-O-32011 | 82957-06-0 | In Stock |
| 6-Cyano-2-naphthol | Intermediate | CS-T-91820 | 52927-22-7 | In Stock |
Glucuronide
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Naphthol 2,3,4-Tri-O-acetyl-beta-D-glucuronide Methyl Este... | Glucuronide | CS-T-58819 | 18404-55-2 | Enquire |
| 1-Naphthol-O-beta-D-Glucuronide Sodium Salt | Glucuronide | CS-T-59100 | 83833-12-9 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (R)-1,1-Bi-2-naphthol | Fine Chemicals | CS-CU-00009 | 18531-94-7 | In Stock |
| 4,4'-Bi-1-naphthol | Fine Chemicals | CS-ED-42122 | 1446-34-0 | Enquire |
| 2-Chloro-6-naphthol | Fine Chemicals | CS-DV-01648 | 40604-49-7 | Enquire |
| 3-Amino-2-naphthol | Fine Chemicals | CS-M-46319 | 5417-63-0 | Enquire |
| 4-Amino-1-naphthol hydrochloride | Fine Chemicals | CS-M-44336 | 5959-56-8 | Enquire |
| 6-Bromo-2-naphthol | Fine Chemicals | CS-T-08568 | 15231-91-1 | Enquire |
| 7-METHYL-1-NAPHTHOL | Fine Chemicals | CS-ZE-02898 | 6939-33-9 | Enquire |
| racemic-6,6-Dibromo-1,1-bi-2-naphthol | Fine Chemicals | CS-DC-00394 | 13185-00-7 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Disodium 1-nitroso-2-naphthol-3,6-disulfate | Nitrosamine | CS-EP-00377 | 525-05-3 | In Stock |
Reagents
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-(2-Pyridylazo)-2-naphthol | Reagents | CS-DV-00509 | 85-85-8 | In Stock |
| Hydroxy Naphthol Blue Disodium Salt (Technical Grade) | Reagents | CS-T-78591 | 165660-27-5 | Enquire |
Stable Isotope Reagent
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-(2-Methoxy-d3 -phenylazo)-2-naphthol | Stable Isotope Reagent | CS-C-02083 | 1398109-09-5 | Enquire |
| 1-(4-Methyl-2-nitrophenylazo)-2-naphthol-3,4,5,6,7,8-d6 | Stable Isotope Reagent | CS-C-02171 | Not Available | Enquire |
| 6-Amidino-2-Naphthol-13C,15N2 Hydrochloride | Stable Isotope Reagent | CS-BU-00132 | 66217-10-5 (Unlabelled) | In Stock |
| α-Naphthol Orange (13C6) | Stable Isotope Reagent | CS-T-103284 | 523-44-4(unlabelled) | Enquire |
| 1-Naphthol D8 | Stable Isotope Reagent | CS-C-00817 | 207569-03-7 | Enquire |
| 2-Naphthol D8 | Stable Isotope Reagent | CS-C-01155 | 78832-61-8 | Enquire |
Biochemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| a-Naphthol 99.5% | Biochemicals | CS-SR-00111 | 90-15-3 | Enquire |
| ß-Naphthol 99% | Biochemicals | CS-SR-00112 | 135-19-3 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-Diazo-1-naphthol-5-sulfonic Acid Sodium Salt | Building Blocks | CS-T-102303 | 2657-00-3 | Enquire |
| 4-Methoxy-1-naphthol | Building Blocks | CS-DE-01536 | 84-85-5 | Enquire |
| 4-Amino-2-naphthol | Building Blocks | CS-O-46118 | 90923-80-1 | Enquire |
| Naphthol AS-LC | Building Blocks | CS-O-47432 | 4273-92-1 | Enquire |
| 1-Amino-8-naphthol-4-sulfonic Acid | Building Blocks | CS-T-66259 | 83-64-7 | Enquire |
Deuterated Reagents
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Naphthol D7 | Deuterated Reagents | CS-T-59099 | 124251-84-9 | Enquire |
Dyes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Naphthol Yellow S | Dyes | CS-BX-00086 | 846-70-8 | Enquire |