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2-Naphthaldehyde

2-Naphthaldehyde

CAS: 66-99-9

Molecular Formula: C11H8O

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2-Naphthaldehyde - Names and Identifiers

Name 2-Naphthaldehyde
Synonyms Naphthaldehyde
2-Naphthakdehyde
2-Naphthaldehyde
B-NAPHTHALDEHYDE
Formylnaphthalene
BETA-NAPHTHALDEHYDE
2-Formylanaphthalene
2-naphthaldehyde (beta)
naphthalene-2-carbaldehyde
2-naphthalenecarboxaldehyde
CAS 66-99-9
EINECS 200-640-2
InChI InChI=1/C11H8O/c12-8-9-5-6-10-3-1-2-4-11(10)7-9/h1-8H
InChIKey PJKVFARRVXDXAD-UHFFFAOYSA-N

2-Naphthaldehyde - Physico-chemical Properties

Molecular FormulaC11H8O
Molar Mass156.18
Density1.6211
Melting Point58-61 °C (lit.)
Boling Point160 °C (19 mmHg)
Flash Point160°C/19mm
Water SolubilitySoluble in hot water.
Solubility Chloroform, Methanol (Sparingly)
Vapor Presure0.00119mmHg at 25°C
AppearancePink crystal
ColorOff-white to yellow or light beige
BRN507750
Storage Condition-20°C
SensitiveAir Sensitive
Refractive Index1.6211 (estimate)
MDLMFCD00004094
Physical and Chemical PropertiesCharacteristic patchy crystal.
melting point 61~63 ℃
boiling point 160 ℃(2.527kPa)
freezing point 1.0755
relative density 1.6211
solubility soluble in ethanol, ether, acetone.
UseFor Organic synthesis

2-Naphthaldehyde - Risk and Safety

Risk CodesR36/37/38 - Irritating to eyes, respiratory system and skin.
R22 - Harmful if swallowed
Safety DescriptionS22 - Do not breathe dust.
S24/25 - Avoid contact with skin and eyes.
S36 - Wear suitable protective clothing.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
UN IDsUN 3335
WGK Germany3
RTECSQJ0190010
FLUKA BRAND F CODES10-23
HS Code29122900

2-Naphthaldehyde - Reference Information

freezing point 1.0755
NIST chemical information information provided by: webbook.nist.gov (external link)
EPA chemical substance information information provided by: ofmpeb.epa.gov (external link)
Overview 2-naphthalene formaldehyde is an organic intermediate, belonging to aromatic aldehydes. As an important chemical raw material, aromatic aldehydes are widely used in many industrial fields such as medicine, fuel, perfume, pesticide and material.
Use for organic synthesis
production method dry hydrogen chloride is passed through a mixture of anhydrous tin dichloride and anhydrous diethyl ether, after saturation, a solution of 2-naphthonitrile in diethyl ether was added, and hydrogen chloride was added to saturation to form a yellow complex of aldiimide and stannic tetrachloride. The complex was distilled with water vapor, and the white solid product, namely, crude 2-naphthalene formaldehyde, was filtered from the distillate, and distilled under reduced pressure to obtain a pure product with a yield of about 70%.
Last Update：2024-04-09 21:04:16
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2-Naphthaldehyde
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