Skip to Content
Merck
CN

70480

α-Naphtholbenzein

Synonym(s):

4,4′-(α-Hydroxybenzylidene)di-1-naphthol, p-naphtholbenzein

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C27H18O2
CAS Number:
145-50-6
Molecular Weight:
374.43
NACRES:
NA.21
PubChem Substance ID:
24886093
UNSPSC Code:
12352200
EC Number:
205-656-3
Beilstein/REAXYS Number:
2628063

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI key

VDDWRTZCUJCDJM-PNHLSOANSA-N

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/b27-24-

SMILES string

Oc1ccc(\C(c2ccccc2)=C3\C=CC(=O)c4ccccc34)c5ccccc15

form

powder

technique(s)

UV/Vis spectroscopy: suitable

mp

230-235 °C (lit.)

Quality Level

100

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

α-Naphtholbenzein is a dye generally used during acid-base titration method.

Application

α-Naphtholbenzein has been used as indicator during sequential injection analysis technique done for acid-base titrations.

hcodes

H413

Hazard Classifications

Aquatic Chronic 4

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCP3572
BCCN5505
BCCM9317
BCCL7012
BCCJ8741

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Titration of strong and weak acids by sequential injection analysis technique.
Maskula, Silla, Johan Nyman, and Ari Ivaska
Talanta, 52.1, 91-99 (2000)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service