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Home> Encyclopedia > Hot Product Listed C   > Carbohydrazide
497-18-7 structure

Carbohydrazide

Iupac Name:1,3-diaminourea
CAS No.:497-18-7
EINECS(EC#): 207-837-2
Molecular Weight:90.08454
Molecular Formula:CH6N4O (isomer)
Properties
Appearance
white crystalline powder
Density
1.02
Melting Point
152-153℃
Refractive Index
1.537
Solubility
Very soluble
Stability
Stable, edbut may explode if heat. Incompatible with strong acids, strong oxidizing agents.
Storage temp
0-6°C
Safety and Handling
Hazard Codes
Xn
Risk Statements
R20/21/22;R36/37/38;R5
Safety Statements
S36/37/39
HazardClass
9
Safety

Safety Information of?Carbohydrazide (CAS NO.497-18-7):
Hazard Codes:Xi,Xn ,N
Risk Statements:
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.?
R5:Heating may cause an explosion.?
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.?
Safety Statements:
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.?
S61:Avoid release to the environment. Refer to special instructions/safety data sheets.?
RIDADR:UN3077
WGK Germany:3
RTECS:FF2625000
HazardClass:9
PackingGroup:III
Poison by intravenous and intraperitoneal routes. Reacts with nitrous acid to form the explosive carbonic diazide. When heated to decomposition it emits toxic fumes of NOx.

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 167mg/kg (167mg/kg) ? Journal of Medicinal and Pharmaceutical Chemistry. Vol. 4, Pg. 259, 1961.
mouse LD50 intravenous 120mg/kg (120mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Journal of Pharmacology and Experimental Therapeutics. Vol. 122, Pg. 110, 1958.
mouse LD50 subcutaneous 131mg/kg (131mg/kg) ? Acta Biologica et Medica Germanica. Vol. 21, Pg. 635, 1968.

PackingGroup
III
Transport
25kgs
Specification

First Aid Measures of Carbohydrazide (CAS NO.497-18-7):
Eyes:Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.?
Skin:Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.?
Ingestion:Get medical aid. Wash mouth out with water.?
Inhalation:Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.?
Storage of Carbohydrazide (CAS NO.497-18-7):
Store in a cool, dry place. Store in a tightly closed container. Keep refrigerated. (Store below 4°C/39°F.)

Report

Reported in EPA TSCA Inventory.

MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Skin sensitization, Category 1B

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Warning

Hazard statement(s)

H317 May cause an allergic skin reaction

Precautionary statement(s)
Prevention

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P272 Contaminated work clothing should not be allowed out of the workplace.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

Response

P302+P352 IF ON SKIN: Wash with plenty of water/...

P333+P313 If skin irritation or rash occurs: Get medical advice/attention.

P321 Specific treatment (see ... on this label).

P362+P364 Take off contaminated clothing and wash it before reuse.

Storage

none

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

Precursor and Product
Computational chemical data
  • Molecular Weight:90.08454g/mol
  • Molecular Formula:CH6N4O
  • Exact Mass:90.054161
  • Monoisotopic Mass:90.054161
  • Complexity:45.5
  • Rotatable Bond Count:0
  • Hydrogen Bond Donor Count:4
  • Hydrogen Bond Acceptor Count:3
  • Topological Polar Surface Area:93.2
  • Heavy Atom Count:6
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:0
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:1
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