CAS 124-43-6PubChem CID 31294
Carbamide Peroxide
Urea hydrogen peroxide is a mixture obtained by combining equimolar amounts of hydrogen peroxide and urea. It has a role as a reagent, a disinfectant and an oxidising agent. It contains a urea and a hydrogen peroxide. — ChEBI
- IUPAC name
- hydrogen peroxide;urea
- Molecular formula
- CH6N2O3
- Molecular weight
- 94.07 g/mol
- Exact mass
- 94.03784206 Da
- Topological polar surface area
- 110.0 Ų
- Hydrogen-bond donors
- 4
- Hydrogen-bond acceptors
- 3
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
Urea hydrogen peroxidePercarbamideUrea peroxideUrea dioxideUrea hydroperoxideHydroperitHydroperitePercarbamid
16 more reported names
HyperolOrtizonPerhydritThenardolPerhydrol-UreaHydrogen peroxide ureaHydrogen peroxide carbamideMurine Ear DropsDebroxGly-oxideUrea compound with hydrogen peroxide (1:1)31PZ2VAU81NSC-24852Carbamide peroxide (USP)Carbamide peroxide [USP]CHEBI:75178
External database identifiers
- ChEBI:CHEBI:75178
- ChEMBL:CHEMBL3184026
- EPA DTXSID:DTXSID9024726
- PubMed:25254197
- PubMed:22666835
- PubMed:22031060
- PubMed:15527615
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match31294
Attributed physical-property, hazard, environmental and use annotations.
- Autoignition Temperature: greater than 680 °F (USCG, 1999) Source: CAMEO Chemicals
- Density: 0.8 at 68 °F (USCG, 1999) - Less dense than water; will float Source: CAMEO Chemicals
- Density: 0.8 @ 20°C Source: PAC Chemical Database, U.S. Department of Energy
- Melting Point: 167 to 185 °F (decomposes) (NTP, 1992) Source: CAMEO Chemicals
- Melting Point: 75-85 Source: DrugBank
- Physical Description: Urea hydrogen peroxide appears as a solid or paste-like semisolid. Used to make plastics. Source: CAMEO Chemicals
- Physical Description: White solid; [Merck Index] Solid or paste-like semisolid; [CAMEO] Odorless; [CHRIS] White tablet; [Sigma-Aldrich MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Solubility: greater than or equal to 100 mg/mL at 68 °F (NTP, 1992) Source: CAMEO Chemicals
- Solubility: 500 g/L at °C Source: DrugBank
- First Aid: 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. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; 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) shou Source: CAMEO Chemicals
- ERG2024, Guide 140 (Urea hydrogen peroxide): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
- Signal: Danger Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H272 (94.9%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]; H314 (83.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H315 (16.9%): Causes skin irritation [Warning Skin corrosion/irritation]; H318 (18.6%): Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P210, P220, P260, P264, P264+P265, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P332+P317, P362+P364, P363, P370+P378, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 59 reports by companies from 12 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. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: NITE-CMC
- GHS Hazard Statements: H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]; H315: Causes skin irritation [Warning Skin corrosion/irritation]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: NITE-CMC
- Precautionary Statement Codes: P210, P220, P264, P264+P265, P280, P302+P352, P305+P354+P338, P317, P321, P332+P317, P362+P364, P370+P378, and P501 (click each P-code to see the statement) Source: NITE-CMC
- GHS Hazard Statements: H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]; H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: NITE-CMC
- Precautionary Statement Codes: P210, P220, P260, P261, P264, P264+P265, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P321, P363, P370+P378, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H315: Causes skin irritation [Warning Skin corrosion/irritation]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P330, P332+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Sources/Uses: Used as an antiseptic, cerumenolytic, and dental bleach; [Merck Index] Used to make plastics; [CAMEO] Used for hair bleaching, oxidation of permanent waves, and hair relaxing; [ExPub: EC: SCCP] Used to develop blueprints and for the modification of starches; [NTP] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Using Disinfectants or Biocides [Category: Clean]; Dressing Hair [Category: Other] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.