CAS 386-17-4: Iodophthalein

Description: Iodophthalein, with the CAS number 386-17-4, is a synthetic organic compound that belongs to the class of phthalein dyes. It is characterized by its bright yellow color and is primarily used as a pH indicator in various chemical applications. Iodophthalein exhibits a color change from yellow to pink as the pH of a solution transitions from acidic to alkaline conditions, making it useful in titrations and other analytical chemistry procedures. The compound is soluble in organic solvents but has limited solubility in water. Its molecular structure includes a phthalic acid derivative with iodine substituents, which contribute to its distinctive color properties. Iodophthalein is also noted for its stability under normal laboratory conditions, although it may degrade when exposed to strong acids or bases. Additionally, it has applications in biological staining and as a tracer in certain medical diagnostics. Safety precautions should be observed when handling this compound, as it may pose health risks if ingested or inhaled.

Formula: C₂₀H₁₀I₄O₄

InChI: InChI=1S/C20H10I4O4/c21-13-5-9(6-14(22)17(13)25)20(10-7-15(23)18(26)16(24)8-10)12-4-2-1-3-11(12)19(27)28-20/h1-8,25-26H

InChI key: InChIKey=FWQKRBDABCRWKV-UHFFFAOYSA-N

SMILES: O=C1OC(C2=CC(I)=C(O)C(I)=C2)(C3=CC(I)=C(O)C(I)=C3)C=4C=CC=CC14

Synonyms:

• 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-3,5-diiodophenyl)-
• 2-[(3,5-Diiodo-4-Oxocyclohexa-2,5-Dien-1-Ylidene)(4-Hydroxy-3,5-Diiodophenyl)Methyl]Benzoic Acid
• 3,3-Bis(4-hydroxy-3,5-diiodo-phenyl)isobenzofuran-1-one
• 3,3-Bis(4-hydroxy-3,5-diiodophenyl)-1(3H)-isobenzofuranone
• 3,3-Bis(4-hydroxy-3,5-diiodophenyl)-2-benzofuran-1(3H)-one
• 3,3-Bis(4-hydroxy-3,5-diiodophenyl)-2-benzofuran-1-one
• 3,3′,5,5′-Tetraiodophenolphthalein
• Iodophthalein
• NSC 164900
• NSC 4904
• Nosophen
• Nosophene
• Phenolphthalein, 3′,3′′,5′,5′′-tetraiodo-
• Tetraiodophenolphthalein

TETRAIODOPHENOLPHTHALEIN

CAS: 386-17-4

• Formula: C₂₀H₁₀I₄O₄
• Purity: 95%
• Color and Shape: Solid
• Molecular weight: 821.9088800000001

3,3-Bis(4-Hydroxy-3,5-Diiodophenyl)Isobenzofuran-1(3H)-One

CAS: 386-17-4

• Purity: 95%+
• Molecular weight: 821.91g/mol

3′,3′′,5′,5′′-Tetraiodophenolphthalein

CAS: 386-17-4

• Formula: C₂₀H₁₀I₄O₄
• Purity: ≥ 95.0%
• Color and Shape: Off-white to light yellow powder
• Molecular weight: 821.91

3',3'',5',5''-Tetraiodophenolphthalein

CAS: 386-17-4

• Formula: C₂₀H₁₀I₄O₄
• Purity: >95.0%(T)(HPLC)
• Color and Shape: Very Pale Yellow - Pale Yellow Solid
• Molecular weight: 821.91

3',3'',5',5''-Tetraiodophenolphthalein

CAS: 386-17-4

• Purity: 95.0%
• Color and Shape: Solid, Very pale yellow to pale yellow powder
• Molecular weight: 821.9140014648438

3',3'',5',5''-Tetraiodophenolphthalein

CAS: 386-17-4

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• Formula: C₂₀H₁₀I₄O₄
• Purity: Min. 95%
• Molecular weight: 821.91 g/mol