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Benzoyl chloride, 3-nitro-

CAS No. 121-90-4 | PubChem CID 8495
Section 1. Identification
Chemical NameBenzoyl chloride, 3-nitro- CAS No.121-90-4
Synonymsm-nitrobenzoyl chloride; 3-nitrobenzoylchloride Chinese Name3-硝基苯甲酰氯
Molecular FormulaCHCINO3 Molecular Weight185.565
UN No.2923 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS05 · Corrosive GHS06 · Acute Toxic GHS07 · Irritant
Hazard Statements H311H312H314H318
Precautionary Statements P260P262P264P264+P265P270P280P301+P330+P331P302+P352P302+P361+P354P304+P340P305+P354+P338P316P317P321P361+P364P362+P364P363P405P501

Section 2. Hazards Identification

H311 (89.1%): Toxic in contact with skin [Danger Acute toxicity, dermal]

H312 (10.9%): Harmful in contact with skin [Warning Acute toxicity, dermal]

H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H318 (87%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

P260, P262, P264, P264+P265, P270, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P361+P364, P362+P364, P363, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 46 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Section 4. First-Aid Measures

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. Corrosive chemicals will destroy the membranes of the mouth, throat, and esophagus and, in addition, have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. Transport the victim IMMEDIATELY to a hospital. (NTP, 1992)

Section 5. Fire-Fighting Measures

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

Section 6. Accidental Release Measures

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Section 7. Handling and Storage

SMALL SPILLS AND LEAKAGE: If a spill of this chemical occurs, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with acetone and transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should keep this material in a tightly closed container under an inert atmosphere, and store it in a freezer. STORE AWAY FROM SOURCES OF IGNITION. (NTP, 1992)

Section 8. Exposure Controls / Personal Protection

MINIMUM PROTECTIVE CLOTHING: If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.

RECOMMENDED RESPIRATOR: When working with this chemical, wear a NIOSH-approved full face chemical cartridge respirator equipped with the appropriate organic vapor cartridges. If that is not available, a half face respirator similarly equipped plus airtight goggles can be substituted. However, please note that half face respirators provide a substantially lower level of protection than do full face respirators. (NTP, 1992)

Section 9. Physical and Chemical Properties

M-nitrobenzoyl chloride is a yellow to brown liquid. Unstable at room temperatures; requires refrigeration when not in use.

527 to 532 °F at 760 mmHg (NTP, 1992)

95 °F (NTP, 1992)

greater than 233.6 °F (NTP, 1992)

Decomposes (NTP, 1992)

6.43 (NTP, 1992) - Heavier than air; will sink (Relative to Air)

Boiling point

Heat of sublimation

Vapor pressure

Section 10. Stability and Reactivity

May be unstable to prolonged exposure to air. Decomposes in water and alcohol. (NTP, 1992).

Nitro, Nitroso, Nitrate, and Nitrite Compounds, Organic

Acyl Halides, Sulfonyl Halides, and Chloroformates

Water-Reactive

M-NITROBENZOYL CHLORIDE is incompatible with bases (including amines), with strong oxidizing agents, and with alcohols. May react with reducing agents. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

Section 14. Transport Information

Corrosive

Source: PubChem CID 8495 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 10:00:00.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.