ALPHA-NAPHTHOLBENZEIN Chemical Properties

Melting point:

230-235 °C(lit.)

Boiling point:

477.16°C (rough estimate)

Density 

1.1098 (rough estimate)

refractive index 

1.5460 (estimate)

storage temp. 

Amber Vial, Room Temperature

solubility 

DMSO (Slightly), Methanol (Slightly)

pka

9.14±0.40(Predicted)

form 

Powder

color 

Red-brown

PH Range

8.5(YELLOW)-9.8(GREEN)

InChI

InChI=1S/C27H20O3/c28-25-16-14-23(19-10-4-6-12-21(19)25)27(30,18-8-2-1-3-9-18)24-15-17-26(29)22-13-7-5-11-20(22)24/h1-17,28-30H

InChIKey

OUYLDJXFDLBCTQ-UHFFFAOYSA-N

SMILES

C(O)(C1C=CC=CC=1)(C1C=CC(O)=C2C=CC=CC=12)C1C=CC(O)=C2C=CC=CC=12

CAS DataBase Reference

6948-88-5(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-24/25

WGK Germany 

3

F 

10-21

HS Code 

29071590

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

ALPHA-NAPHTHOLBENZEIN Usage And Synthesis

Chemical Properties

RED-BROWN POWDER

Uses

α-Naphtholbenzein can be used as an indicator during non-aqueous titration.

Purification Methods

-{4-hydroxynaphth-1-yl})-benzyl alcohol] B2319 M 392.5, m 122-125o, ~ 9.3. Crystallise the alcohol from EtOH, aqueous EtOH or glacial acetic acid. pKEst [Beilstein 6 H 1150.B2319]

ALPHA-NAPHTHOLBENZEIN(6948-88-5)Related Product Information

• alpha-Naphtholphthalein
• Bis(2-ethylhexyl) phosphate
• 4,4'-BIS(TRIFLUOROMETHYL)-2,2'-DINITRODIPHENYL DISULFIDE
• bis(4-nitrophenyl) (oxybis(ethane-2,1-diyl)) bis(carbonate)
• 1-Naphthalenemethanol
• Triphenylmethane
• 1-(P-HYDROXYPHENYL) ETHANOL
• ALPHA-NAPHTHOLBENZEIN
• 4-BENZYLPHENOL
• (S)-(-)-ALPHA-METHYL-1-NAPHTHALENEMETHANOL
• Benzhydrol
• 1,1-DIPHENYLETHANOL
• 4-Isopropylphenol
• (R)-(+)-1-Phenylethanol
• Triphenylmethanol
• (R)-(+)-ALPHA-METHYL-1-NAPHTHALENEMETHANOL
• 2-PHENYL-2-PROPANOL
• 1-ISOPROPYLNAPHTHALENE