Introduction：Basic information about CAS 18861-78-4|Fluorescein isothiocyanate (Spiro Form), including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | Fluorescein isothiocyanate (Spiro Form) |
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| CAS Number | 18861-78-4 | Molecular Weight | 389.381 |
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| Density | 1.5±0.1 g/cm3 | Boiling Point | 719.1±60.0 °C at 760 mmHg |
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| Molecular Formula | C21H11NO5S | Melting Point | / |
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| MSDS | / | Flash Point | 388.7±32.9 °C |
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Names
| Name | 3',6'-dihydroxy-5-isothiocyanatospiro[2-benzofuran-3,9'-xanthene]-1-one |
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| Synonym | More Synonyms |
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Fluorescein isothiocyanate (Spiro Form) BiologicalActivity
| Description | Fluorescein-6-isothiocyanate is a fluorescent isomeric haptenic probes with Kds of 8.74, 2.72 and 1.88 for N-Acetyl-L-Lysine, normal mouse IgG and 4-4-20, respectively[1]. |
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| Related Catalog | Research Areas >>OthersSignaling Pathways >>Others >>Others |
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| Target | Kd: 8.74 (N-Acetyl-L-Lysine), 2.72 (normal mouse IgG), 1.88 (4-4-20)[1] |
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| References | [1]. Swindlehurst CA, et al. Fluorescence measurements of immune complexes of Mab 4-4-20 with isomeric haptens. Biophys J. 1991 Mar;59(3):619-28. |
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Chemical & Physical Properties
| Density | 1.5±0.1 g/cm3 |
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| Boiling Point | 719.1±60.0 °C at 760 mmHg |
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| Molecular Formula | C21H11NO5S |
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| Molecular Weight | 389.381 |
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| Flash Point | 388.7±32.9 °C |
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| Exact Mass | 389.035797 |
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| PSA | 120.44000 |
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| LogP | 4.00 |
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| Vapour Pressure | 0.0±2.4 mmHg at 25°C |
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| Index of Refraction | 1.754 |
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| InChIKey | GTQFZXYECNSNNC-UHFFFAOYSA-N |
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| SMILES | O=C1OC2(c3ccc(O)cc3Oc3cc(O)ccc32)c2cc(N=C=S)ccc21 |
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Safety Information
Customs
| HS Code | 2932999099 |
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| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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Synonyms
| Fluorescein isothiocyanate |
| Fluorescein-6-isothiocyanate |
| 6-FITC (isomer II) |
| 6-FITC |
| 6-Isothiocyanatofluorescein |
| 6-Isothiocyanatofluorescein (isomer II) |
| FITC 'Isomer II' |
| fluorescein 6-isothiocyanate |
| Fluorescein 6-Isothiocyanate (isoMer II) |
| FITC |
| Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-6-isothiocyanato- |
| Fluorescein Isothiocyanate (isomer II) |
| fluorescein-5-isothiocyanate |
| FITC isomer II [Fluorescein-6-isothiocyanate] |
| 3',6'-Dihydroxy-6-isothiocyanato-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one |
| F6ITC |
