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3′,6′-Dichlorospiro[Isobenzofuran-1(3H),9′-[9H]Xanthen]-3-One

CAS: 630-88-6 | C20H10Cl2O3

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 630-88-6
Molecular Formula: C20H10Cl2O3
Molecular Mass: 369.20 g/mol

Names and Synonyms:

3′,6′-Dichlorospiro[Isobenzofuran-1(3H),9′-[9H]Xanthen]-3-One
Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 3′,6′-dichloro-
Fluoran, 3′,6′-dichloro-
3′,6′-Dichlorospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one
Fluorescein dichloride
3′,6′-Dichlorofluoran
3,6-Dichlorofluorescein
NSC 231613
3′,6′-dichlorospiro(phthalide-3,9′-xanthene)
3′,6′-Dichlorospiro[2-benzofuran-3,9′-xanthene]-1-one

Identifiers:

SMILES:
O=C1OC2(c3ccc(Cl)cc3Oc3cc(Cl)ccc32)c2ccccc21
InChI:
InChI=1S/C20H10Cl2O3/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20/h1-10H

Key Properties

Melting Point
255-257 °C @ Solvent: Methanol CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 369.20 g/mol CAS Common Chemistry
369.20300000000003 g/mol RDKit
368.00069953999997 g/mol RDKit
Canonical SMILES O=C1OC2(C3=CC=C(Cl)C=C3OC4=CC(Cl)=CC=C42)C=5C=CC=CC15 CAS Common Chemistry
InChI InChI=1S/C20H10Cl2O3/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20/h1-10H CAS Common Chemistry
InChI Key InChIKey=LNBKJWCRFAZVLK-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 255-257 °C @ Solvent: Methanol CAS Common Chemistry
Name 3′,6′-Dichlorospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one CAS Common Chemistry
Heavy Atom Count 25 RDKit
Hydrogen Bond Acceptors 3 RDKit
Hydrogen Bond Donors 0 RDKit
Rotatable Bonds 0 RDKit
Aromatic Ring Count 3 RDKit
Topological Polar Surface Area 35.53 Ų RDKit
LogP 5.5614000000000035 RDKit
Molar Refractivity 94.71750000000002 RDKit

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