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α-Naphtholphthalein

α-Naphtholphthalein structure

CAS No:
596-01-0
Formula:
C28H18O4
Chemical Name:
α-Naphtholphthalein
Synonyms:
1(3H)-Isobenzofuranone,3,3-bis(4-hydroxy-1-naphthalenyl)-;Phthalide,3,3-bis(4-hydroxy-1-naphthyl)-;1,1′-Naphthol-4,4′-phthalein;3,3-Bis(4-hydroxy-1-naphthalenyl)-1(3H)-isobenzofuranone;α-Naphtholphthalein;Di-p-α-Naphtholphthalide;p-α-Naphtholphthalein;1-Naphtholphthalein;3,3-Bis(4-hydroxy-1-naphthyl)-1,3-dihydroisobenzofuran-1-one;Naphtholphthalein blue;3,3-Bis(4-hydroxy-1-naphthyl)phthalide;3,3-Bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1-one
Categories:
Biochemical Engineering > Biochemical Reagents

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Description

pink to beige or brown fine crystalline powder

α-Naphtholphthalein Basic Attributes

Molecular Weight：

418.44

Exact Mass：

418.44

EC Number：

209-875-5

UNII：

2QEG1706NN

DSSTox ID：

DTXSID70208273

HScode：

32041900

Characteristics

PSA：

66.8

XLogP3：

5.86650

Appearance：

Pink to beige or brown Powder

Density：

1.404 g/cm3

Melting Point：

254 °C

Boiling Point：

705.6ºC at 760 mmHg

Flash Point：

247ºC

Refractive Index：

1.769

Water Solubility：

soluble in ethanol. Insoluble in water.

Storage Conditions：

Store below +30°C.

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38

safety instructions：

26-36

Marks：

Stability/Shelf Life：

Stable under normal temperatures and pressures.

Precautionary statement(s)：

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

GHS Classification：

|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 38 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

naphtholphthalein

α-Naphtholphthalein Use and Manufacturing

As indicator in 0.1% or 0.04% solution in alcohol.pH 7.3 colorless to reddish; 8.7 greenish to blue.Particularly adapted for weak acids in strong alcoholic solution.

Computed Properties

Molecular Weight:418.4
XLogP3:6.3
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:2
Exact Mass:418.12050905
Monoisotopic Mass:418.12050905
Topological Polar Surface Area:66.8
Heavy Atom Count:32
Complexity:668
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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CAS No.: 596-01-0

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alpha-Naphtholphthalein

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1-NAPHTHOLPHTHALEIN

CAS No.: 596-01-0

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Guide of α-Naphtholphthalein

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Recommended Suppliers
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α-Naphtholphthalein

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