5(6)-TAMRA NHS Ester CAS 150408-83-6
| CAS No. | 150408-83-6 |
| Molecular Formula | 2*C29H25N3O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 5(6)-TAMRA NHS Ester (CAS 150408-83-6), a certified reference material (molecular formula C29H25N3O7, MW 527.53 g/mol) for analytical method development and quality control.
5(6)-TAMRA NHS Ester (C29H25N3O7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | 2*C29H25N3O7 |
| Molecular Weight | 527.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 3 |
Related TAMRA Standards
- TAMRA-PEG4-Alkyne (CAS 1225057-68-0)
- TAMRA-PEG3-Azide (CAS 1228100-59-1)
- 5(6)-TAMRA (CAS 150347-56-1)
- 6-TAMRA NHS Ester (CAS 150810-69-8)
- 5(6)-TAMRA cadaverine (CAS 159311-67-8)
- TAMRA-Azide-PEG-biotin (CAS 1797415-74-7)
- 5-TAMRA-Amyloid β-Protein (1-42) trifluoroacetate salt (CAS 1802087-80-4)
- 5-TAMRA-Amyloid β-Protein (1-40) trifluoroacetate salt (CAS 1802087-81-5)
Recommended Standards
- methyl 1-acetyl-3,3-dimethoxycyclobutane-1-carboxylate (CAS 1499341-53-5)
- 2,6-Diamino-3-methylpyrimidine-4(3H)-thione (CAS 145864-33-1)
- (6-Chloro-5-methylpyridin-2-yl)methanamine (CAS 1256811-86-5)
- Sitafloxacin impurity 88 (CAS CATO-C4X-115588)
- 1326527-34-7 5-Fluoro-3-(4-methoxy-phenylimino)-1,3-dihydro-indol-2-one (CAS 1326527-34-7)
- N,N-bis(4-chlorobenzyl)-5-nitropyrimidin-2-amine (CAS 866155-01-3)
- (1,5-Dimethyl-1H-1,2,3-triazol-4-yl)methanol (CAS 942060-18-6)
- 5-(4-Methylnaphthalen-1-yl)nicotinic acid (CAS 1263377-29-2)
- 4-Methoxy-2-nitrobenzene-1-sulfonamide (CAS 81792-84-9)
- Acetyl decapeptide-3 (CAS 935288-50-9)
Why CATO?
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