rac-Levothyroxine EP Impurity J (3,3'-DL-Diiodothyronine) CAS 70-40-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 70-40-6 |
| Molecular Formula | C15H13I2NO4 |
| Molecular Weight | 525.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order rac-Levothyroxine EP Impurity J (3,3'-DL-Diiodothyronine) (CAS 70-40-6) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C15H13I2NO4. Molecular weight: 525.08 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C15H13I2NO4 |
| Molecular Weight | 525.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related rac Standards
- Levothyroxine Impurity 16 (CAS 4192-14-7)
- Levothyroxine EP Impurity J (CAS 4604-41-5)
- Levothyroxine EP Impurity E (CAS 1041-01-6)
- Levothyroxine Impurity 37 (CAS 94345-95-6)
- Levothyroxine Impurity 18 (CAS 1155-40-4)
- Levothyroxine Impurity 38 (CAS 1027-28-7)
- Levothyroxine Impurity 58 (CAS 176258-87-0)
- Levothyroxine Impurity 42 (CAS 4618-45-5)
Recommended Standards
- VTP 27999 (CAS 942142-51-0)
- 3,5-Diiodo-DL-thyronine (CAS 534-51-0)
- 3,5-Diiodo-D-thyronine (CAS 5563-89-3)
- 4-Cyano-3-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-carboxylic acid (CAS 1805578-75-9)
- 3-(1,2,4-Oxadiazol-3-yl)benzaldehyde (CAS 1119450-74-6)
- 1-Aminoazetidin-3-ol (CAS 887591-03-9)
- 3-Methyl-1-[2,4,6-trihydroxy-3-(3-methyl-2-buten-1-yl)phenyl]-1-butanone (CAS 54614-64-1)
- 3,5-Dichloro-2,4-difluorobenzoic acid (CAS 163656-30-2)
- 4-Amino-2,5-dichlorobenzenesulfonic acid (CAS 88-50-6)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
Why CATO?
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