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  • 8.00553 - Trimethyl phosphite

8.00553 EMD Millipore

Trimethyl phosphite

Trimethyl phosphite for synthesis. CAS 121-45-9, molar mass 124.08 g/mol., for synthesis

  • CAS Number 121-45-9

  • Linear Formula C₃H₉O₃P

  • Molecular Weight 124.08 g/mol

  •  EC Number 204-471-5



Related Categories Biochemicals and Reagents More...
packaging   100 ml in Glass bottle (8005530100)
bp   112 °C (1013 hPa)
expl. lim.     5.2 - 61.2 %(V)
vapor pressure   28 hPa (20 °C)
density   1.05 g/cm3 (20 °C)
flash point   28 °C
autoignition temp.   250 °C
mp   -78 °C
LD 50 oral   LD50 Rat 1600 mg/kg
LD 50 dermal   LD50 Rabbit 2600 mg/kg
shipped in   ambient
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Density (d 20 °C/ 4 °C): 1.051 - 1.053
  Identity (IR): passes test

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Safety Information

HS Code 
2920 23 00
Hazard Statement(s) 
H226: Flammable liquid and vapour.
H302: Harmful if swallowed.
H315: Causes skin irritation.
EUH014: Reacts violently with water.
Precautionary Statement(s) 
P210: Keep away from heat.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
Storage class 
3 Flammable liquids
WGK 1 slightly water endangering
Strongly contaminated halogen-free organic solvents: container A.
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Harmful  Harmful
Declaration (railroad and road) ADR, RID 
UN 2329 , 3, III
Declaration (transport by air) IATA-DGR 
UN 2329 , 3, III
Declaration (transport by sea) IMDG-Code 
UN 2329 , 3, III
Categories of danger 
flammable, harmful, irritant
R Phrase 
R 10-14-22-38
Flammable.Reacts violently with water.Harmful if swallowed.Irritating to skin.
S Phrase 
S 23-25
Do not breathe vapour.Avoid contact with eyes.
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