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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 82607Generated: October 24, 2026

2-Bromo-5-nitroaniline

AKOS BBS-00001987 · 2-Bromo-5-nitroaniL · 2-BROMO-5-NITROANILINE · 2-Bromo-5-nitroaniline,98% · 2-Bromo-5-nitroaniline >2-Bromo-5-nitroaniline 98% · 3-Amino-4-bromonitrobenzene · Benzenamine, 2-bromo-5-nitro- · 2-Bromo-5-nitroaniline, GC 98%

https://huagongshe.com/en/chemical/82607

2-Bromo-5-nitroaniline molecular structure

Identifiers & Physical Properties

CAS No.10403-47-1
Molecular formulaC6H5BrN2O2
Average molar mass217.02 g/mol
Monoisotopic mass215.9534395 g/mol
SMILESNc1cc([N+](=O)[O-])ccc1Br
InChIKeyBAAUCXCLMDAZEL-UHFFFAOYSA-N
PubChem CID82607
ChEMBLCHEMBL106285
EC No.233-874-9
DTXSIDDTXSID50146225

Chemical & Physical Properties

XLogP2.3
Topological polar surface area71.8
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds0
Heavy atoms11
Formal charge0
Complexity159
Melting point139-141 °C (lit.)
Boiling point334.5±22.0 °C(Predicted)
Density1.7917 (rough estimate)
Refractive index1.5150 (estimate)
Storage conditionsKeep in dark place,Inert atmosphere,Room temperature
pKa (acidity coefficient)0.49±0.10(Predicted)
Physical stateFine Crystalline Needles or Crystalline Powder
ColorDark yellow to khaki
Solubilityslightly soluble
BRN2803492
InChI1S/C6H5BrN2O2/c7-5-2-1-4(9(10)11)3-6(5)8/h1-3H,8H2
InChIKeyBAAUCXCLMDAZEL-UHFFFAOYSA-N
SMILESNc1cc(ccc1Br)[N+]([O-])=O
CAS DataBase Reference10403-47-1(CAS DataBase Reference)
NIST Chemistry Reference2-Bromo-5-nitroaniline(10403-47-1)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P264-P271-P280-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Hazard symbolsXi
Risk statements (R)36/37/38
Safety statements (S)26-36-37/39
UN transport numberUN 2811 6.1/PG 3
Water hazard class (WGK)3
Hazard class6.1Eye Irrit. 2Skin Irrit. 2STOT SE 3
Packing groupIII
Customs code29214200
Storage class11 - Combustible Solids

Safety & Regulations

GHS classificationWarningH302 (15.2%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 46 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesAcute Tox. 4 (15.2%)
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK)3
UN transport numberUN 2811 6.1/PG 3
Customs code29214200
Risk statements (R)36/37/38
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi
Safety statements (S)26-36-37/39
Hazard class6.1Eye Irrit. 2Skin Irrit. 2STOT SE 3
Storage class11 - Combustible Solids
Packing groupIII
Target organsRespiratory system
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P264-P271-P280-P302+P352-P305+P351+P338

Applications & Uses

Uses

2-Bromo-5-nitroaniline reacts with phosgene iminium chloride to give a dimethylcarbamimidic chloride intermediate, which is then treated with primary amines to form guanidinyl derivatives and ultimately 5-nitrobenzimidazole derivatives[1]. 2-Bromo-5-nitroaniline can be acetylated and then thionated to give the corresponding thioamide, or heated with an amide and POCl3 in toluene to afford amidine derivatives[2].