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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 66012Generated: October 23, 2026

Benzene, 1-isocyanato-4-nitro-

4-Nitrophenyl · ai3-28253 · TIMTEC-BB SBB006628 · 4-Nitrophenyl isocya · 4-Nitrophenylcarbimide · 4-NITROPHENYL ISOCYANATE · P-NITROPHENYL ISOCYANATE · 4-Isocyanatonitrobenzene

https://huagongshe.com/en/chemical/66012

Benzene, 1-isocyanato-4-nitro- molecular structure

Identifiers & Physical Properties

CAS No.100-28-7
Molecular formulaC7H4N2O3
Average molar mass164.12 g/mol
Monoisotopic mass164.02219199 g/mol
SMILESO=C=Nc1ccc([N+](=O)[O-])cc1
InChIKeyGFNKTLQTQSALEJ-UHFFFAOYSA-N
PubChem CID66012
EC No.202-836-3
DTXSIDDTXSID80870440

Chemical & Physical Properties

XLogP3
Topological polar surface area75.3
Hydrogen bond donors0
Hydrogen bond acceptors4
Rotatable bonds1
Heavy atoms12
Formal charge0
Complexity209
SpringerMaterials PropertiesChemical shift
Melting point56-59 °C(lit.)
Boiling point137-138 °C11 mm Hg(lit.)
Density1.5018 (rough estimate)
Refractive index1.5300 (estimate)
Flash point>110°C
Storage conditions2-8°C
Solubilitysoluble in Benzene,TolueneInsoluble in water.
Physical stateCrystalline Solid
ColorYellow
SensitivityMoisture Sensitive
BRN389516
InChI1S/C7H4N2O3/c10-5-8-6-1-3-7(4-2-6)9(11)12/h1-4H
InChIKeyGFNKTLQTQSALEJ-UHFFFAOYSA-N
SMILES[O-][N+](=O)c1ccc(cc1)N=C=O
CAS DataBase Reference100-28-7(CAS DataBase Reference)
FDA UNIIL4X2CUC34D
NIST Chemistry ReferenceBenzene, 1-isocyanato-4-nitro-(100-28-7)
EPA Substance Registry Systemp-Nitrophenyl isocyanate (100-28-7)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07,GHS08
Signal wordDanger
GHS hazard statementsH302+H332-H315-H317-H319-H334-H335
GHS precautionary statementsP261-P264-P280-P301+P312-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard symbolsXn
Risk statements (R)20/21/22-36/37/38-42
Safety statements (S)22-26-36/37/39-45
UN transport number2206
Water hazard class (WGK)3
RTECS numberDA3692500
F10-19-21
TSCA inventory statusTSCA listed
Hazard class6.1(b)Acute Tox. 4 InhalationAcute Tox. 4 OralEye Irrit. 2Resp. Sens. 1Skin Irrit. 2Skin Sens. 1STOT SE 3
Packing groupIII
Customs code29291090
Storage class11 - Combustible Solids
ToxicityLD50 orl-rat: 1600 mg/kg NTIS** OTS0528342
Limited quantities5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Safety & Regulations

GHS classificationDangerH302 (98%): Harmful if swallowed [Warning Acute toxicity, oral]P233, P260, P261, P264, P264+P265, P270, P271, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 50 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesAcute Tox. 4 (98%)
F10-19-21
Personal protective equipment (PPE)dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
RTECS numberDA3692500
UN transport number2206
Customs code29291090
ToxicityLD50 orl-rat: 1600 mg/kg NTIS** OTS0528342
Risk statements (R)20/21/22-36/37/38-42
Signal wordDanger
GHS pictogramGHS07,GHS08
Hazard symbolsXn
Safety statements (S)22-26-36/37/39-45
Hazard class6.1(b)Acute Tox. 4 InhalationAcute Tox. 4 OralEye Irrit. 2Resp. Sens. 1Skin Irrit. 2Skin Sens. 1STOT SE 3
Storage class11 - Combustible Solids
Packing groupIII
Target organsRespiratory system
GHS hazard statementsH302+H332-H315-H317-H319-H334-H335
Limited quantities5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
GHS precautionary statementsP261-P264-P280-P301+P312-P302+P352-P305+P351+P338

Applications & Uses

Uses

4-Nitrophenyl isocyanate is used as pharmaceutical intermediates. 4-Nitrophenyl isocyanate was used in the synthesis of 2-(5-methyl-3,4-diphenyl-1H-pyrrole-2-carbonyl)-N-(4-nitrophenyl)hydrazinecarboxamide.