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8.11866 EMD Millipore

Crown ether/Dicyclohexyl-18-crown-6

Crown ether/Dicyclohexyl-18-crown-6 (mixture of cis- and trans-isomers) for synthesis. CAS 16069-36-6, molar mass 372.51 g/mol., (mixture of cis- and trans-isomers) for synthesis

Synonym: 2,5,8,15,18,21-Hexaoxatricyclo[] hexacosane, Dicyclohexyl-18-crown-6

  • CAS Number 16069-36-6

  • Linear Formula C₂₀H₃₆O₆

  • Molecular Weight 372.51 g/mol

  •  EC Number 240-216-4



Related Categories Biochemicals and Reagents More...
packaging   1 g in Glass bottle (8118660001)
flash point   113 °C
mp   46 - 50 °C
LD 50 oral   LD50 Rat 176 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 97.0 % (a/a)
  Identity (IR): passes test

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Safety Information

HS Code 
2932 99 00
Hazard Statement(s) 
H301: Toxic if swallowed.
Precautionary Statement(s) 
P262: Do not get in eyes, on skin, or on clothing.
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) 
GHS06  GHS06
Hazard Symbols 
Toxic  Toxic
Declaration (railroad and road) ADR, RID 
UN 2811 , 6.1, III
Declaration (transport by air) IATA-DGR 
UN 2811 , 6.1, III
Declaration (transport by sea) IMDG-Code 
UN 2811 , 6.1, III
Categories of danger 
R Phrase 
R 25
Toxic if swallowed.
S Phrase 
S 25-37-45
Avoid contact with eyes.Wear suitable gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
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