Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Indigo, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Indigo 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 Indigo-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 Indigo-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.
Indigo Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Indigo-D8 | Stable Isotopes | CS-T-103310 | 479-41-4(unlabelled) | Enquire |
| Indigopurpurin-d4 | Stable Isotopes | CS-T-103703 | 479-41-4(unlabelled) | Enquire |
| N,N’-Diisopropyl-5,6,5’,6’-tetrahydroxy Indigo-d14 | Stable Isotopes | CS-T-100433 | Not Available | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Indigo Carmine | API Standards | CS-T-29273 | 860-22-0 | In Stock |
| Indigotindisulfonate | API Standards | CS-ED-41927 | 483-20-5 | Enquire |
| Isoindigo | API Standards | CS-T-29750 | 476-34-6 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "5,5’,6,6’-Tetrakis(methoxymethoxy)-indigotin" | Impurities | CS-T-86226 | 858230-17-8 | Enquire |
| "7,7'-Bis(4-bromobenzoyl) Isoindigo" | Impurities | CS-O-15557 | 1798431-98-7 | Enquire |
| 3-Hydroxy-1H-indole-2-carboxaldehyde | Impurities | CS-O-56313 | 172984-51-9 | Enquire |
| 5-Hydroxy-1H-indole-3-carbaldehyde | Impurities | CS-O-56354 | 3414-19-5 | Enquire |
| Indigo Carmine Related Compound 1 | Impurities | CS-P-01486 | 27414-69-3 | Enquire |
| Indigo Carmine Related Compound 2 | Impurities | CS-P-01487 | 27414-68-2 | Enquire |
| Indigo-D8 (major) | Impurities | CS-F-00235 | 482-89-3 (unlabelled) | Enquire |
| Indigopurpurin | Impurities | CS-T-29274 | 479-41-4 | Enquire |
| Indigotindisulfonate Impurity C | Impurities | CS-O-59156 | 7313-70-4 | Enquire |
| Indigotindisulfonate Impurity D | Impurities | CS-O-59159 | 767607-23-8 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Indigo | Intermediates | CS-E-00882 | 482-89-3 | Enquire |
| Meisoindigo | Intermediates | CS-T-82185 | 97207-47-1 | Enquire |