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8.41321 EMD Millipore

Citraconic anhydride

Citraconic anhydride for synthesis. CAS 616-02-4, molar mass 112.08 g/mol., for synthesis

Synonym: Methylmaleic anhydride

  • CAS Number 616-02-4

  • Linear Formula C₅H₄O₃

  • Molecular Weight 112.08 g/mol

  •  EC Number 210-459-0



Related Categories Biochemicals and Reagents More...
packaging   100 ml in Glass bottle (8413210100)
bp   213 - 214 °C (1013 hPa)
vapor pressure   1.3 hPa (47 °C)
density   1.243 g/cm3 (20 °C)
flash point   111 °C
mp   7 - 8 °C
LD 50 oral   LD50 Rat 2600 mg/kg
LD 50 dermal   LD50 Rabbit 218 mg/kg
shipped in   ambient
storage temp.   Store at <= 20°C.
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Density (d 20 °C/ 4 °C): 1.241 - 1.246
  Identity (IR): passes test

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Safety Information

HS Code 
2917 19 80
Hazard Statement(s) 
H311: Toxic in contact with skin.
H314: Causes severe skin burns and eye damage.
H317: May cause an allergic skin reaction.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Precautionary Statement(s) 
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK 3 highly water endangering
Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Pictogram(s) 
GHS08  GHS08
Declaration (railroad and road) ADR, RID 
UN 2810 , 6.1, II
Declaration (transport by air) IATA-DGR 
UN 2810 , 6.1, II
Declaration (transport by sea) IMDG-Code 
UN 2810 , 6.1, II
Categories of danger 
toxic, irritant, sensitizing
R Phrase 
R 24-34-42/43
Toxic in contact with skin.Causes burns.May cause sensitisation by inhalation and skin contact.
S Phrase 
S 45-26-36/37/39
In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.
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