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alpha-Naphtholphthalein

Product Name
alpha-Naphtholphthalein
CAS No.
596-01-0
Chemical Name
alpha-Naphtholphthalein
Synonyms
NAPHTHOLPHTHALEIN;1-NAPHTHOLPHTHALEIN;1-naphthol quinone;ɑ-Naphtholphthalein;l-naphtholphthalein;à-naphtholphthalein;α-Naphtholphthalein;p-α-Naphtholphthalein;α-Naphtholphthalein>Naphtholphthalein blue
CBNumber
CB0451639
Molecular Formula
C28H18O4
Formula Weight
418.44
MOL File
596-01-0.mol
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alpha-Naphtholphthalein Property

Melting point:
238-240 °C(lit.)
Boiling point:
496.21°C (rough estimate)
Density 
1.1532 (rough estimate)
vapor density 
14.44 (vs air)
refractive index 
1.6400 (estimate)
storage temp. 
Store below +30°C.
solubility 
Solubility Practically insoluble in water; soluble in ethanol
form 
Powder
pka
8.0, 8.2, 8.5(at 25℃)
color 
Pink to beige or brown
PH Range
7.1(brownish)-8.3(blue/green)
PH
pH : 7.1~8.7
Odor
Characteristic odour
Water Solubility 
Soluble in ethanol. Insoluble in water.
λmax
648nm
Merck 
14,6389
BRN 
97816
InChIKey
HQHBAGKIEAOSNM-UHFFFAOYSA-N
CAS DataBase Reference
596-01-0(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
HS Code 
32041900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
N8257
Product name
α-Naphtholphthalein
Purity
practical grade
Packaging
1g
Price
$118
Updated
2024/03/01
Sigma-Aldrich
Product number
N8257
Product name
α-Naphtholphthalein
Purity
practical grade
Packaging
5g
Price
$388
Updated
2024/03/01
Sigma-Aldrich
Product number
1.06246
Product name
1-Naphtholphthalein
Purity
indicator
Packaging
1g
Price
$285
Updated
2024/03/01
Sigma-Aldrich
Product number
1.06246
Product name
1-Naphtholphthalein
Purity
indicator
Packaging
5G
Price
$326
Updated
2024/03/01
Sigma-Aldrich
Product number
1.06246
Product name
1-Naphtholphthalein
Purity
indicator
Packaging
100g
Price
$2850
Updated
2024/03/01
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alpha-Naphtholphthalein Chemical Properties,Usage,Production

Chemical Properties

pink to beige or brown fine crystalline powder

Uses

alpha-Naphtholphthalein is used in preparation of epoxy resin compound, preparing, laminated board, printed circuit board, and cured product with high heat resistance and flame retardancy.

Uses

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.

alpha-Naphtholphthalein Preparation Products And Raw materials

Raw materials

Preparation Products

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alpha-Naphtholphthalein Suppliers

Anhui Tianjia Chemical Science & Technology Co.,Ltd.
Tel
0550-2392698 18355069969
Fax
0550-2392698
Email
tianjiachem@hotmail.com
Country
China
ProdList
17
Advantage
57
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Jia Xing Isenchem Co.,Ltd
Tel
0573-85285100 18627885956
Fax
0573-85285100
Email
isenchem@163.com
Country
China
ProdList
9413
Advantage
66
Shanghai Longsheng chemical Co.,Ltd.
Tel
021-58099652-8005 13585536065
Fax
021-58099609
Email
bin.wu@shlschem.com
Country
China
ProdList
9809
Advantage
59
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View Lastest Price from alpha-Naphtholphthalein manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
alpha-Naphtholphthalein 596-01-0
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-02-07
Hebei Kingfiner Technology Development Co.Ltd
Product
alpha-Naphtholphthalein 596-01-0
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
50000kg
Release date
2024-06-14
Hebei Weibang Biotechnology Co., Ltd
Product
alpha-Naphtholphthalein 596-01-0
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 mt
Release date
2022-12-08

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