21811-74-5 Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, ar-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-3',6'-dihydroxy-, monohydrochloride Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-3',6'-dihydroxy-, hydrochloride (1:1) Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-3',6'-dihydroxy-, monohydrochloride 5-((4,6-Dichlorotriazin-2-yl)amino)fluorescein hydrochloride CAS 21811-74-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21811-74-5 |
| Molecular Formula | C23H36Cl2N4O5 HCl |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 21811-74-5 Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, ar-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-3',6'-dihydroxy-, monohydrochloride Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-3',6'-dihydroxy-, hydrochloride (1:1) Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-3',6'-dihydroxy-, monohydrochloride 5-((4,6-Dichlorotriazin-2-yl)amino)fluorescein hydrochloride (CAS 21811-74-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C23H36Cl2N4O5 HCl. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C23H36Cl2N4O5 HCl |
| Molecular Weight | 555.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 5-Methyl-2-(3-pyridinyl)-1,3-thiazol-4-yl 2,4-dichlorobenzenecarboxylate (CAS 338398-95-1)
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- (E)-3-((2,6-dichlorobenzyl)thio)-5-(2-(dimethylamino)vinyl)isothiazole-4-carbonitrile (CAS 338778-51-1)
- N-(2-((4-chloro-3-nitrophenyl)amino)-2-oxoethyl)-N-cyclohexyl-3-nitrobenzamide (CAS 332156-19-1)
- FMRF-Like Peptide from snail Helix aspersa (CAS 98495-35-3)
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