861324

p-Rosolic acid

Dye content 84 %

• Synonym(s): 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone, Aurin
• Empirical Formula (Hill Notation): C₁₉H₁₄O₃
• CAS Number: 603-45-2
• Molecular Weight: 290.31
• Colour Index Number: 43800
• Beilstein: 2055205
• EC Number: 210-041-8
• MDL number: MFCD00001624
• UNSPSC Code: 12171500
• PubChem Substance ID: 24888536
• NACRES: NA.47

Properties

• form: powder
• Quality Level: 200
• composition: Dye content, 84%
• technique(s): titration: suitable
• pH: 5.0-6.8, yellow to pink
• cation traces: C: 66.0-90.8%
• λmax: 482 nm
• ε (extinction coefficient): ≥11000 at 264-270 nm in ethanol; ≥50000 at 478-486 nm in ethanol
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: O=C(C=C1)C=CC1=C(C2=CC=C(O)C=C2)C3=CC=C(O)C=C3
• InChI: 1S/C19H14O3/c20-16-7-1-13(2-8-16)19(14-3-9-17(21)10-4-14)15-5-11-18(22)12-6-15/h1-12,20-21H
• InChI key: FYEHYMARPSSOBO-UHFFFAOYSA-N

Description

General description

p-Rosolic acid (C.I. 43800) is an acid-baseindicator from the triphenylmethane group. It is also known as aurin and 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone.

Application

p-Rosolic acid has been used to induce cellular stress in HEK293 cells.[1]

Biochem/physiol Actions

The transition range of p-Rosolic acid is around pH 6.6-8.0 (Below this pH range it is yellow and above it red).

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves