Rhodamine 800 CAS 137993-41-0
| CAS No. | 137993-41-0 |
| Molecular Formula | C26H32N3O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Rhodamine 800 (CAS 137993-41-0), molecular formula C26H32N3OClO4 and molecular weight 502.01 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Rhodamine 800 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 502.01 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C26H32N3O ClO4 |
| Molecular Weight | 502.01 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Rhodamine Standards
- Rhodamine 800 (CAS 101027-54-7)
- Rhodamine 101 internal salt (CAS 116450-56-7)
- Rhodamine 6G Bis(aminoethyl)amine Amide Bis (Trifluoroacetate) (CAS 1173097-37-4)
- Rhodamine 6G Perchlorate (CAS 13161-28-9)
- Rhodamine 110 (CAS 13558-31-1)
- Rhodamine B octadecyl ester perchlorate, 98% (CAS 142179-00-8)
- Rhodamine B isothiocyanate mixed isomers (CAS 14696-19-6)
- 36877-69-7 Rhodamine isothiocyanate 9-(2-Carboxy-5(or 6)-isothiocyanatophenyl)-3,6-bis(diethylamino)xanthylium chloride Xanthylium, 9-(2-carboxy-5(or 6)-isothiocyanatophenyl)-3,6-bis(diethylamino)-, chloride (1:1) Xanthylium, 9-(2-carboxy-5(or 6)-isothiocyanatophenyl)-3,6-bis(diethylamino)-, chloride EINECS 253-248-9 Rhodamine B isothiocyanate (CAS 36877-69-7)
Recommended Standards
- 5-((4-Ethylphenoxy)methyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 667435-97-4)
- 1,4-Triazolo[4,3-b]pyridazine, 6-chloro- 28593-24-0 6-Chloro-1,4-triazolo[4,3-b]pyridazine 6-Chloro-s-triazolo[4,3-b]pyridazine NSC-228162 NSC228162 s-Triazolo[4, 6-chloro- (CAS 28593-24-0)
- 1-(2-Methanesulfonyl-5-nitrophenyl)pyrrolidine (CAS 1437794-78-9)
- N-methylbenzo[c]isothiazol-3-amine (CAS 700-07-2)
- 6-Cyclopropyl-2-(diethylamino)-4-(trifluoromethyl)pyridine-3-carbonitrile (CAS 478049-67-1)
- Methyl 4-(5-(hydroxymethyl)pyridin-2-yl)benzoate (CAS 1370587-25-9)
- 4-Amino-5-(aminomethyl)pyrimidine-2-thiol (CAS 766545-82-8)
- 4-(Methylsulfonyl)-6-(piperazin-1-yl)pyrimidine (CAS 1710194-83-4)
- (4-(Difluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridin-2-yl)methanol (CAS 1805077-42-2)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
Why CATO?
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