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ChemicalBook >> CAS DataBase List >>4-Bromo-2-nitrobenzaldehyde

4-Bromo-2-nitrobenzaldehyde

CAS No.
5551-12-2
Chemical Name:
4-Bromo-2-nitrobenzaldehyde
Synonyms
Nifedipine Impurity 20;4-BROMO-2-NITROBENZALDEHYDE;Benzaldehyde, 4-bromo-2-nitro-;4-BroMo-2-nitrobenzaldehyde, 95+%;4'-Amino-3',6'-difluoroacetophenone;4-Bromo-2-nitrobenzaldehyde, 97%min;2-Nitro-4-brom-benzaldehyd,2-nitro-4-bromobenzaldehyde,4-bromo-2-nitro-benzaldehyde,4-Brom-2-nitro-benzaldehyd
CBNumber:
CB8137003
Molecular Formula:
C7H4BrNO3
Molecular Weight:
230.02
MDL Number:
MFCD00463687
MOL File:
5551-12-2.mol
MSDS File:
SDS
Last updated:2026-05-28 03:23:25
Product description Number Pack Size Price
4-Bromo-2-nitrobenzaldehyde 97% 756628 1g $74.8
4-Bromo-2-nitrobenzaldehyde >96.0%(GC) B4146 1g $37
4-Bromo-2-nitrobenzaldehyde >96.0%(GC) B4146 5g $143
4-Bromo-2-nitrobenzaldehyde FB63999 0.05kg $317.07
4-Bromo-2-nitrobenzaldehyde FB63999 0.1kg $614.92
More product size

4-Bromo-2-nitrobenzaldehyde Properties

Melting point 95.0 to 99.0 °C
Boiling point 334.4±32.0 °C(Predicted)
Density 1.781±0.06 g/cm3(Predicted)
storage temp. 2-8°C, stored under nitrogen
solubility soluble in Methanol
form powder to crystal
color Light orange to Yellow to Green
λmax 260nm(CH3CN)(lit.)
InChI InChI=1S/C7H4BrNO3/c8-6-2-1-5(4-10)7(3-6)9(11)12/h1-4H
InChIKey GSXUXSXBEUJRAJ-UHFFFAOYSA-N
SMILES C(=O)C1=CC=C(Br)C=C1[N+]([O-])=O
CAS DataBase Reference 5551-12-2(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Environment (GHS09)
GHS07,GHS09
Signal word  Warning
Hazard statements  H302-H315-H317-H319-H335-H400
Precautionary statements  P273-P280-P301+P312+P330-P302+P352-P305+P351+P338
target organs Respiratory system
Hazard Codes  Xn,N
Risk Statements  22-36/37/38-43-50
Safety Statements  26-36/37-61
RIDADR  UN 3077 9 / PGIII
WGK Germany  3
HS Code  2913000090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Acute 1
Eye Irrit. 2
Skin Irrit. 2
Skin Sens. 1
STOT SE 3
NFPA 704
0
2 0

4-Bromo-2-nitrobenzaldehyde price More Price(79)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 756628 4-Bromo-2-nitrobenzaldehyde 97% 5551-12-2 1g $74.8 2023-06-20 Buy
TCI Chemical B4146 4-Bromo-2-nitrobenzaldehyde >96.0%(GC) 5551-12-2 1g $37 2026-04-30 Buy
TCI Chemical B4146 4-Bromo-2-nitrobenzaldehyde >96.0%(GC) 5551-12-2 5g $143 2026-04-30 Buy
Biosynth FB63999 4-Bromo-2-nitrobenzaldehyde 5551-12-2 0.05kg $317.07 2026-06-04 Buy
Biosynth FB63999 4-Bromo-2-nitrobenzaldehyde 5551-12-2 0.1kg $614.92 2026-06-04 Buy
Product number Packaging Price Buy
756628 1g $74.8 Buy
B4146 1g $37 Buy
B4146 5g $143 Buy
FB63999 0.05kg $317.07 Buy
FB63999 0.1kg $614.92 Buy

4-Bromo-2-nitrobenzaldehyde Chemical Properties,Uses,Production

Uses

4-Bromo-2-nitrobenzaldehyde is used along with in the synthesis of Tyrian Purple as a teaching material, from o-Nitrotoluene via 4-Bromo-2-nitrotoluene and 4-Bromo-2-nitrobenzylidene diacetate;Also, it is used as a starting material in the synthesis of heterocyclyl as HDAC3 inhibitors.

Synthesis Reference(s)

The Journal of Organic Chemistry, 72, p. 5867, 2007 DOI: 10.1021/jo070477u

Synthesis

4-Bromo-2-nitrotoluene

60956-26-5

4-Bromo-2-nitrobenzaldehyde

5551-12-2

Step A: Concentrated sulfuric acid (324 mL) was added slowly and dropwise to a solution of 4-bromo-1-methyl-2-nitrobenzene (300 g, 1.38 mol) in acetic anhydride (2400 mL) at 0 °C. Subsequently, a solution of chromium trioxide (384 g, 3.84 mol) dissolved in acetic anhydride (2160 mL) was added, keeping the internal temperature of the reaction system below 10 °C during the process. The reaction mixture was stirred for 1 hour and then slowly poured into an ice-water mixture. The solid product was collected by filtration and washed with plenty of water until the washings were colorless. The resulting solid was suspended in 1800 mL of a 2% aqueous sodium carbonate solution, stirred thoroughly and then filtered again, washed with water and finally dried under reduced pressure. [000195] The diacetate product obtained above was suspended in a mixed solution comprising 1360 mL of concentrated hydrochloric acid, 1250 mL of water and 480 mL of ethanol and refluxed for 45 minutes. After the reaction was completed, it was cooled to room temperature, the solid product was collected by filtration and washed with water. The final 4-bromo-2-nitrobenzaldehyde (147 g, 45% overall yield in two steps) was obtained as a brown solid, which could be used in the subsequent reaction without further purification.

References

[1] Patent: WO2012/97177, 2012, A2. Location in patent: Page/Page column 57-58
[2] Bioorganic and Medicinal Chemistry, 2006, vol. 14, # 7, p. 2462 - 2467
[3] Organic Preparations and Procedures International, 2006, vol. 38, # 3, p. 325 - 331
[4] Synthetic Communications, 2001, vol. 31, # 23, p. 3721 - 3727
[5] Heterocycles, 1994, vol. 39, # 2, p. 767 - 778

22996-19-6
5551-12-2
Synthesis of 4-Bromo-2-nitrobenzaldehyde from 4-Bromo-2-nitrobenzyl alcohol
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View Lastest Price from 4-Bromo-2-nitrobenzaldehyde manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Bromo-2-nitrobenzaldehyde pictures 2026-03-20 4-Bromo-2-nitrobenzaldehyde
5551-12-2
$10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
4-Bromo-2-nitrobenzaldehyde pictures 2024-04-24 4-Bromo-2-nitrobenzaldehyde
5551-12-2
$30.00-100.00 1kg 99.93% 1000kg per week Ouhuang Engineering Materials (Hubei) Co., Ltd
	4-Bromo-2-nitrobenzaldehyde pictures 2020-01-10 4-Bromo-2-nitrobenzaldehyde
5551-12-2
$6.68 1KG 97%-99% 1kg-1000kg Career Henan Chemical Co
4-BROMO-2-NITROBENZALDEHYDE 4-BroMo-2-nitrobenzaldehyde, 95+% 2-Nitro-4-brom-benzaldehyd,2-nitro-4-bromobenzaldehyde,4-bromo-2-nitro-benzaldehyde,4-Brom-2-nitro-benzaldehyd Benzaldehyde, 4-bromo-2-nitro- Nifedipine Impurity 20 4'-Amino-3',6'-difluoroacetophenone 4-Bromo-2-nitrobenzaldehyde, 97%min 5551-12-2 5551-12-3 5551-12-1 5551-12-1 C7H4NO3Br Heterocyclic Compounds Aromatic Aldehydes & Derivatives (substituted)
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