CAS 145-50-6: α-Naphtholbenzein

Description: α-Naphtholbenzein, with the CAS number 145-50-6, is an organic compound that belongs to the class of naphthol derivatives. It is characterized by its distinctive structure, which includes a naphthalene ring fused with a benzene ring and a hydroxyl group. This compound typically appears as a solid, often exhibiting a yellow to orange color, and is known for its use as a pH indicator due to its ability to change color in response to varying pH levels. α-Naphtholbenzein is soluble in organic solvents but has limited solubility in water. Its applications extend to analytical chemistry, where it is utilized in titrations and other methods to determine acidity or alkalinity. Additionally, it may be employed in dye formulations and as a reagent in organic synthesis. Safety precautions should be observed when handling this compound, as it may pose health risks upon exposure. Overall, α-Naphtholbenzein is a valuable chemical in both laboratory and industrial settings.

Formula: C₂₇H₁₈O₂

InChI: InChI=1S/C27H18O2/c28-25-16-14-23(19-10-4-6-12-21(19)25)27(18-8-2-1-3-9-18)24-15-17-26(29)22-13-7-5-11-20(22)24/h1-17,28H

InChI key: InChIKey=VDDWRTZCUJCDJM-UHFFFAOYSA-N

SMILES: O=C1C=CC(C=2C=CC=CC12)=C(C=3C=CC=CC3)C4=CC=C(O)C=5C=CC=CC54

Synonyms:

• (4E)-4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]naphthalen-1(4H)-one
• (4Z)-4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]naphthalen-1(4H)-one
• 1(4H)-Naphthalenone, 4-((4-hydroxy-1-naphthalenyl)phenylmethylene)-
• 1(4H)-Naphthalenone, 4-(alpha-(4-hydroxy-1-naphthyl)benzylidene)- (8CI)
• 1(4H)-Naphthalenone, 4-[α-(4-hydroxy-1-naphthyl)benzylidene]-
• 4,4'-[Hydroxy(Phenyl)Methanediyl]Dinaphthalen-1-Ol
• 4-(alpha-(4-Hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one
• 4-[(4-Hydroxy-1-naphthalenyl)phenylmethylene]-1(4H)-naphthalenone
• 4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]naphthalen-1(4H)-one
• Nsc 9862
• alpha-Naphtholbenzein
• p-Naphtholbenzein
• α-Naphtholbenzein

p-Naphtholbenzein

CAS: 145-50-6

• Formula: C₂₇H₁₈O₂
• Color and Shape: Orange to Amber to Dark red powder to crystal
• Molecular weight: 374.44

α-Naphtholbenzein

CAS: 145-50-6

α-Naphtholbenzein is used as a pH indicator. (pH 0.0-0.8/ pH 8.2-10.0). This Thermo Scientific Chemicals …

• Formula: C₂₇H₁₈O₂
• Color and Shape: Powder, Red to brown
• Molecular weight: 374.44

1(4H)-Naphthalenone, 4-[(4-hydroxy-1-naphthalenyl)phenylmethylene]-

CAS: 145-50-6

• Formula: C₂₇H₁₈O₂
• Purity: 95%
• Color and Shape: Solid
• Molecular weight: 374.43062000000003

α-Naphtholbenzein

CAS: 145-50-6

• Formula: C₂₇H₁₈O₂
• Color and Shape: Red to red-brown or dark brown powder
• Molecular weight: 374.44

α-Naphtholbenzein

CAS: 145-50-6

α-Naphtholbenzein, also known as p-Naphtolbenzein, is a dye that serves as a pH indicator, exhibiting …

• Formula: C₂₇H₁₈O₂
• Color and Shape: Liquid
• Molecular weight: 374.43

alfa-Naphtholbenzein

CAS: 145-50-6

• Formula: C₂₇H₁₈O₂
• Molecular weight: 374.44

α-Naphtholbenzein

CAS: 145-50-6

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₂₇H₁₈O₂
• Color and Shape: Dark red to red-brown to brown-black, to orange-brown, Powder
• Molecular weight: 374.44

α-Naphtholbenzein

CAS: 145-50-6

• Formula: C₂₇H₁₈O₂
• Color and Shape: dark red powder
• Molecular weight: 374.43g/mol

a-Naphtholbenzein (Technical Grade)

CAS: 145-50-6

Applications alpha-Naphtholbenzein is a pH indicator (pH 0.0-0.8/ pH 8.2-10.0). Dyes and metabolites.

• Formula: C₂₇H₁₈O₂
• Color and Shape: Dark Red
• Molecular weight: 374.43

Naphtholbenzein

CAS: 145-50-6

• Color and Shape: Solid
• Molecular weight: 374.4389953613281

p-Naphtholbenzein

CAS: 145-50-6

p-Naphtholbenzein is a fluorescent dye that is used in the diagnosis of human pathogens. It …

• Formula: C₂₇H₁₈O₂
• Color and Shape: Powder
• Molecular weight: 374.43 g/mol

1-Naphtholbenzein extrapure

CAS: 145-50-6

• Color and Shape: Dark red to red-brown to brown black to orange-brown, Powder, Clear