1-Nitroso-2-naphthol

Basic Information

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CAS Number

131-91-9

Molecular Formula

C10H7NO2

Molecular Weight

173.17 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

106-108 °C (dec.)

Boiling Point

303.81°C (rough estimate)

Refractive Index

1.5200 (estimate)

SMILES

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C1=CC=C2C(=C1)C=CC(=C2N=O)O

InChI

InChI=1S/C10H7NO2/c12-9-6-5-7-3-1-2-4-8(7)10(9)11-13/h1-6,12H

InChIKey

YXAOOTNFFAQIPZ-UHFFFAOYSA-N

LogP

2.9433000000000007

Topological Polar Surface Area

49.660000000000004 Å²

Hydrogen Bond Donor/Acceptor

1 / 3

Complexity

195

Safety Information

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GHS Hazard Pictograms

H302

H315

H319

H335

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Hazard Class

Class 9 Class 9

Sensitiveness

thermally sensitive

Synonyms & References

English

BDBM108228
N0266
FT-0608158
1,2-Naphthalenedione, 1-oxime
UNII-757I55U2QX
1‐nitroso‐2‐naphthol (Substrate 5)
1,2-naphthoquinone-1-oxime
2-Naphthalenol, 1-nitroso-
1,2-Naphthoquinone 1-oxime
DTXSID30876194
AS-15422
1-Nitroso-2-naphthol, SAJ special grade, >=97.0%
.alpha.-Nitroso-.beta.-naphthol
NSC4151
AKOS000283071
131-91-9
CS-0336127
W-108324
DTXSID9059622
NSC-677525
1-Nitroso-2-naftol [Czech]
1-nitrosonaphthalen-2-ol
CCRIS 1556
1-Nitroso-2-naphthol, 98.0%
1-Nitroso-2-naftol
(E)-1-(hydroxyimino)naphthalen-2(1H)-one
A806332
alpha-Nitroso-beta-naftol [Czech]
1-nitroso-naphthalen-2-ol
MFCD00003884
WLN: L66J BNO CQ

MDL Number

MFCD00003884

Customs Code

29089000

FAQ

What is 1-Nitroso-2-naphthol (CAS: 131-91-9)?

1-Nitroso-2-naphthol is a chemical compound with the CAS number 131-91-9. It is an organic compound with the chemical formula C10H7NO2. It is a yellow crystalline solid with a pungent odor. It is used in the synthesis of other compounds and as a reagent in chemical reactions.

What are the main uses of 1-Nitroso-2-naphthol (CAS: 131-91-9)?

1-Nitroso-2-naphthol is primarily used in the chemical industry as a precursor for the synthesis of other compounds. It is also used in research as a reagent due to its unique chemical properties. Its applications include dye synthesis, pharmaceuticals, and as an intermediate in the production of other organic compounds.

Is 1-Nitroso-2-naphthol (CAS: 131-91-9) safe?

1-Nitroso-2-naphthol is potentially toxic and should be handled with care. It is important to follow safety guidelines, including the use of personal protective equipment (PPE) such as gloves and goggles. It is classified as a hazardous chemical and should be stored in a secure, well-ventilated area. Exposure to this compound can cause irritation to the eyes, skin, and respiratory system. Follow safety standards and work with experienced personnel to minimize risks.

How should 1-Nitroso-2-naphthol (CAS: 131-91-9) be stored?

1-Nitroso-2-naphthol should be stored in a cool, dry place away from direct sunlight and heat sources. It should be kept in a tightly sealed container to prevent moisture and light exposure. Store it in a well-ventilated area and ensure it is isolated from incompatible materials such as reducing agents and strong bases. The storage temperature should be below 25°C (77°F) to maintain its stability. Always follow the manufacturer's storage instructions for optimal safety and efficiency.