4,5-Dimethoxy-2-nitrobenzaldehyde

Basic Information

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CAS Number

20357-25-9

Molecular Formula

C9H9NO5

Molecular Weight

211.17 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Aldehydes

Basic Chemical Raw Materials Organic Chemicals Ethers

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

132.0 to 136.0 deg-C

Boiling Point

390.8°C at 760 mmHg

Water Solubility

Insoluble in water. Soluble to 25 mM in ethanol with gentle warming and to 100 mM in DMSO.

Flash Point

194.3 °C

Solubility

DMSO: 22 mg/mL

Refractive Index

1.5700 (estimate)

SMILES

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COC1=C(C=C(C(=C1)C=O)[N+](=O)[O-])OC

InChI

InChI=1S/C9H9NO5/c1-14-8-3-6(5-11)7(10(12)13)4-9(8)15-2/h3-5H,1-2H3

InChIKey

YWSPWKXREVSQCA-UHFFFAOYSA-N

LogP

1.94770

Complexity

239

Safety Information

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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

H332 Harmful if inhaled
Acute toxicity, inhalation

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

Hazard Class

Class IRRITANT Class IRRITANT

Sensitiveness

Air & Light Sensitive

Synonyms & References

English

EINECS 243-762-1
4,5-Dimethoxy-2-nitrobenzaldehyde
NS00026596
6-Nitro veratraldehyde
s5510
AKOS040759472
HY-100705
Z57888147
TD1274
4,5-Dimethoxy-2-nitrobenzaldehyde #
STR05106
HMS3677E15
ST044482
CHEBI:108597
NCGC00092305-01
FT-0621281
DMNB
DTXSID30174268
DNA-PK Inhibitor - CAS 20357-25-9
4,5-dimethoxy-2-nitro-benzaldehyde
HSCI1_000095
Veratraldehyde, 6-nitro-
HMS3413E15
NSC65590
AE-641/30608009
AKOS000100856
BP-12518
UNII-3V2SVJ99E2
6-Nitroveratraldehyde, technical grade, 80%
MFCD00007134
NSC 65590

MDL Number

MFCD00007134

Customs Code

2913000090

FAQ

What are the physical and chemical properties of 4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9)?

4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9) is a crystalline solid with a molecular weight of approximately 238.13 g/mol. It is slightly soluble in water but more soluble in organic solvents such as ethanol and acetone. Chemically, it is reactive and can undergo nitro reduction and methoxy group reactions. It is typically used in organic synthesis and as a precursor in the production of various dyes and pharmaceuticals.

How is 4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9) typically synthesized?

4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9) can be synthesized via the reduction of 4,5-dimethoxy-2-nitrobenzoic acid with a suitable reducing agent like sodium borohydride. The reaction involves adding anhydrous sodium borohydride to a solution of the acid in a polar solvent like methanol or ethanol. The yield is typically around 85-90%, and the reaction is usually carried out under mild conditions.

What industries use 4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9)?

4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9) is used in various industries including pharmaceuticals, dyes, and pigments. It serves as an intermediate in the synthesis of other compounds and is also used in the development of new materials such as sensors and semiconductors.

What precautions should be taken when handling 4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9)?

When handling 4,5-Dimethoxy-2-nitrobenzaldehyde (CAS: 20357-25-9), it is essential to wear appropriate personal protective equipment (PPE) such as gloves, safety goggles, and a lab coat. The substance should be handled in a well-ventilated area or a fume hood to avoid inhalation. Spills should be cleaned up using appropriate absorbent materials, and the area should be aired out. Refer to the Safety Data Sheet (SDS) for detailed information on handling and emergency procedures.