alpha-Naphtholphthalein

Names

[ CAS No. ]:
596-01-0

[ Name ]:
alpha-Naphtholphthalein

[Synonym ]:
3,3-bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1-one
MFCD00036202
EINECS 209-875-5

Chemical & Physical Properties

[ Density]:
1.404 g/cm3

[ Boiling Point ]:
705.6ºC at 760 mmHg

[ Melting Point ]:
238-240 °C(lit.)

[ Molecular Formula ]:
C₂₈H₁₈O₄

[ Molecular Weight ]:
418.44000

[ Flash Point ]:
247ºC

[ Exact Mass ]:
418.12100

[ PSA ]:
66.76000

[ LogP ]:
5.86650

[ Index of Refraction ]:
1.769

MSDS

Safety Information

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xi:Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S36

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ HS Code ]:
32041900

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

Phthalic anhydride
1-Naphthalenol
Phthaloyl chloride
Sulfuric acid
N-(1-ethoxycarbonyl-propen-2-yl)urea
Benzoic acid,2-[(1-hydroxy-2-naphthalenyl)carbonyl]-

DownStream

Customs

[ HS Code ]: 2932209090

[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles

Phosphorescent sensing of carbon dioxide based on secondary inner-filter quenching.

Anal. Chim. Acta 655(1-2) , 66-74, (2009)

A study of different strategies to prepare phosphorescence-based sensors for gaseous CO(2) determination has been performed. It includes the characterization of different configurations tested, a disc...

ALPHA-D(+)MALTOSE 1-PHOSPHATE DIPOTASSIUM SALT
alpha-ethoxy-m-nitrobenzylideneammonium chloride
(-)-alpha-Cedrene
alpha-cyclopentyl-alpha-2-thienylglycollic acid
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(-)-alpha-Narcotine
N-(3-chloro-4-fluorophenyl)-2-(8-(3,5-dimethylpiperidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide
2-(8-(3,5-dimethylpiperidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(3-(trifluoromethyl)phenyl)acetamide
2-(8-(3,5-dimethylpiperidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(2-fluoro-4-methylphenyl)acetamide
2-(8-(3,5-dimethylpiperidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(3-fluoro-4-methylphenyl)acetamide
N-(2-chloro-4-methylphenyl)-2-(8-(3,5-dimethylpiperidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide
N-(3-chloro-4-methylphenyl)-2-[8-(3,5-dimethylpiperidin-1-yl)-3-oxo[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl]acetamide
N-(4-(methylthio)benzyl)-2-(8-morpholino-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide
N-[(3,5-difluorophenyl)methyl]-2-[8-(morpholin-4-yl)-3-oxo-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-2-yl]acetamide
N-(2-chlorobenzyl)-2-(8-morpholino-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide
2-(Aminocarbonyl)-N-(3-amino-4-fluorophenyl)-1-pyrrolidinepropanamide

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