Chemical Safety Data Sheet MSDS / SDS
4-Nitrosophenol
Revision Date:2026-03-20Revision Number:1
Product identifier
- Product name: 4-Nitrosophenol
- CBnumber: CB9182464
- CAS: 104-91-6
- EINECS Number: 203-251-6
- Synonyms: Nsc3124;Aids159812
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 010-86108875
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
Hazard statements
H411 Toxic to aquatic life with long lasting effects
H341 Suspected of causing genetic defects
H318 Causes serious eye damage
H315 Causes skin irritation
H302 Harmful if swallowed
H228 Flammable solid
Substance
- Product name: 4-Nitrosophenol
- Synonyms: Nsc3124;Aids159812
- CAS: 104-91-6
- EC number: 203-251-6
- MF: C6H5NO2
- MW: 123.11
If inhaled
Remove person to fresh air and keep comfortable for breathing. Get medical advice/ attention.
In case of skin contact
Take off all contaminated clothing immediately. Wash off with soap and plenty of water. Get medical advice/ attention.
In case of eye contact
Rinse with plenty of water. If easy to do, remove contact lens, if worn. Immediately call a POISON CENTER or doctor/ physician.
If swallowed
Call a POISON CENTER or doctor/ physician if you feel unwell. Rinse mouth.
Most important symptoms and effects, both acute and delayed
None known.
Suitable extinguishing media
Dry powder, Foam, Water spray, Carbon dioxide (CO2)
Specific hazards during fire fighting
May explode in fire. Take care as it may decompose upon combustion or in high temperatures to generate poisonous fume.
Specific extinguishing methods
Use extinguishing measures that are appropriate to local circumstances and the surrounding environment. Immediately evacuate personnel to safe areas. Cool closed containers exposed to fire with water spray. Remove undamaged containers from fire area if it is safe to do so.
Special protective equipment for fire-fighters
Use personal protective equipment.
Personal precautions, protective equipment and emergency procedures
Wear suitable protective equipment. Keep people away from and upwind of spill/leak. Entry to non-involved personnel should be controlled around the leakage area by roping off, etc.
Environmental precautions
Should not be released into the environment.
Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust.
Handling
Technical measuresPrevent dispersion of dust. Take precautionary measures against static discharge. Use explosion-proof equipment.
Local/Total ventilation
Ensure adequate ventilation. Handle product only in closed system or provide appropriate exhaust ventilation at machinery. Use a local exhaust ventilation.
Advice on safe handling
Avoid contact with skin, eyes and clothing. Wear personal protective equipment. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Wash hands and face thoroughly after handling.
Avoidance of contact
Oxidizing agents, Strong bases
Storage
Conditions for safe storageKeep container tightly closed. Store in a refrigerator. Use explosion-proof equipment. Store locked up. Avoid shock and friction.
Ingredients with workplace control parameters
Contains no substances with occupational exposure limit values.
Engineering measures
Install a closed system or local exhaust.
Also install safety shower and eye bath.
Also install safety shower and eye bath.
Personal protective equipment
Respiratory protectionDustproof gas mask
Self-contained breathing apparatus
Eye/face protection
Self-contained breathing apparatus
Safety glasses
Safety goggles
Face-shield
Skin and body protection
Safety goggles
Face-shield
Impervious protective clothing
Hand protection
Impervious gloves *Use personal protective equipment(PPE) approved under appropriate government standards and follow local and national regulations.
Information on basic physicochemical properties
- Physical statepowder to crystal
- Density and/or relative density1.3147 (rough estimate)
- Molecular weight123.11 g/mol
- Viscosity, kinematicNo data available
- Viscosity, dynamicNo data available
- Decomposition temperatureNo data available
- Autoignition temperatureNo data available
- Partition coefficient: n-octanol/water (log value)No data available
- Solubility in other solventssoluble Solvent: Methanol
- Water solubility<0.1 g/100 mL at 21 ºC
- Solubility(ies)soluble in Methanol
- Vapor pressure0.003Pa at 20℃
- Lower explosion limit / Lower flammability limitNo data available
- Upper explosion limit / Upper flammability limitNo data available
- FlammabilityNo data available
- Evaporation rateNo data available
- Flash pointNo data available
- Boiling point/boiling range229.19°C (rough estimate)
- Melting point/freezing pointNo data available
- pHNo data available
- Odor ThresholdNo data available
- OdorNo data available
- Coloryellow - orange
- Appearancesolid
Reactivity
No data available
Chemical stability
Stable under normal conditions.
Possibility of hazardous reactions
May explosively decompose on heating, shock, friction, etc.
Conditions to avoid
Heat. Electrical spark Open flame Electrostatic discharge Avoid shock and friction.
Incompatible materials
Oxidizing agents, Strong bases
Hazardous decomposition products
Carbon monoxide, Carbon dioxide (CO2), Nitrogen oxides (NOx)
Acute toxicity
Product
Acute oral toxicity
Assessment: The component/mixture is moderately toxic after single ingestion.
Skin corrosion/irritation
Product
Result
Skin irritation
Serious eye damage/eye irritation
Product
Result
Irreversible effects on the eye
Respiratory or skin sensitization
Classified based on available data. For more details, see section 2.
Germ cell mutagenicity
Product
Germ cell mutagenicity - Assessment
Suspected of inducing heritable mutations in the germ cells of humans.
Carcinogenicity
Classified based on available data. For more details, see section 2.
Reproductive toxicity
Classified based on available data. For more details, see section 2.
STOT-single exposure
Classified based on available data. For more details, see section 2.
STOT-repeated exposure
Classified based on available data. For more details, see section 2.
Repeated dose toxicity
Classified based on available data. For more details, see section 2.
Aspiration toxicity
Classified based on available data. For more details, see section 2.
RTECS No.
SM4725000 (4-Nitrosophenol)
Ecotoxicity
Product:
Ecotoxicology Assessment
Acute aquatic toxicityToxic to aquatic life.
Chronic aquatic toxicity
Toxic to aquatic life with long lasting effects.
Persistence and degradability
No data available
Bioaccumulative potential
No data available
Mobility in soil
No data available
Other adverse effects
No data available
Disposal methods
Waste from residuesDisposal in accordance with local and national regulations. Take precautions against ignition or explode. Entrust disposal to a licensed waste disposal company.
Contaminated packaging
Disposal in accordance with local and national regulations. Before disposal of used container, remove contents completely.
International Regulations
IATA-DGR
UN/ID No.UN 1325
Proper shipping name
Flammable solid, organic, n.o.s.
Class
4.1
Packing group
II
IMDG-Code
UN numberUN 1325
Proper shipping name
FLAMMABLE SOLID, ORGANIC, N.O.S.
Class
4.1
Packing group
II
EmS Code
F-A, S-G
Domestic regulation
GB 6944/12268
UN numberUN 1325
Proper shipping name
FLAMMABLE SOLID, ORGANIC, N.O.S.
Class
4.1
Packing group
II
Regulations on Safety Management of Hazardous Chemicals
Catalogue of Hazardous ChemicalsListed
The ingredients of this product are reported in the following inventories
CH BAGREGOn the inventory, or in compliance with the inventory
TSCA
All substances listed as active on the TSCA inventory
AICS
On the inventory, or in compliance with the inventory
DSL
This product contains the following components listed on the Canadian NDSL. All other components are on the Canadian DSL.
4-Nitrosophenol
ENCS
4-Nitrosophenol
On the inventory, or in compliance with the inventory
ISHL
On the inventory, or in compliance with the inventory
KECI
On the inventory, or in compliance with the inventory
PICCS
On the inventory, or in compliance with the inventory
IECSC
On the inventory, or in compliance with the inventory
NZIoC
Not in compliance with the inventory
Abbreviations and acronyms
CAS: Chemical Abstracts Service
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
Disclaimer:
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.