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8.00742 EMD Millipore

1,2,3,6-Tetrahydrophthalic anhydride

1,2,3,6-Tetrahydrophthalic anhydride for synthesis. CAS 85-43-8, pH 2.1 (10 g/l, H₂O, 20 °C)., for synthesis

Synonym: 4-Cyclohexene-1,2-dicarboxylic anhydride

  • CAS Number 85-43-8

  • Linear Formula C₈H₈O₃

  • Molecular Weight 152.14 g/mol

  •  EC Number 201-605-4



Related Categories Biochemicals and Reagents More...
packaging   100 g in Plastic bottle (8007420100)
vapor pressure   0.00021 hPa (20 °C)
solubility   29.4 g/l
density   1.36 g/cm3 (1013 hPa, 20 °C)
flash point   156 °C
autoignition temp.   400 °C
mp   101.4 °C
pH   2.1 (10 g/l, H₂O, 20 °C)
LD 50 oral   LD50 Rat 5410 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (morpholine method): ≥ 97.0 %
  Melting range (lower value): ≥ 99 °C
  Melting range (upper value): ≤ 102 °C
  Identity (IR): passes test

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Safety Information

HS Code 
2917 20 00
Hazard Statement(s) 
H318: Causes serious eye damage.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317: May cause an allergic skin reaction.
H412: Harmful to aquatic life with long lasting effects.
Precautionary Statement(s) 
P273: Avoid release to the environment.
P280: Wear protective gloves/ eye protection/ face protection.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304 + P341: IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342 + P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
Storage class 
8A Combustible, corrosive hazardous materials
WGK 1 slightly water endangering
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Pictogram(s) 
GHS08  GHS08
Hazard Symbols 
Harmful  Harmful
Declaration (railroad and road) ADR, RID 
UN 2698 , 8, III
Declaration (transport by air) IATA-DGR 
UN 2698 , 8, III
Declaration (transport by sea) IMDG-Code 
UN 2698 , 8, III, Segregation Group: 1 (Acids)
Categories of danger 
irritant, sensitizing, dangerous for the environment
R Phrase 
R 41-42/43-52/53
Risk of serious damage to eyes.May cause sensitisation by inhalation and skin contact.Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase 
S 22-24-26-37/39-61
Do not breathe dust.Avoid contact with skin.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable gloves and eye/face protection.Avoid release to the environment. Refer to special instructions/ Safety data sheets.
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