Trimethyl orthoacetate Structure

Trimethyl orthoacetate

Chemical Properties

Boiling point 107-109 °C(lit.)
Density  0.944 g/mL at 25 °C(lit.)
vapor pressure  20 hPa (20 °C)
refractive index  n20/D 1.388(lit.)
Flash point 62 °F
storage temp.  Store below +30°C.
solubility  Chloroform (Sparingly), Methanol (Slightly)
form  Liquid
color  Clear colorless to slightly brown
Specific Gravity 0.960 (20/4℃)
Water Solubility  HYDROLYSIS
Sensitive  Moisture Sensitive
BRN  1098338
Henry's Law Constant 6.4×10-1 mol/(m3Pa) at 25℃, Guthrie (1973)
InChI 1S/C5H12O3/c1-5(6-2,7-3)8-4/h1-4H3
InChIKey HDPNBNXLBDFELL-UHFFFAOYSA-N
SMILES COC(C)(OC)OC
LogP 1.13 at 25℃
CAS DataBase Reference 1445-45-0(CAS DataBase Reference)
FDA UNII 04H7A3FK37
NIST Chemistry Reference Ethane, 1,1,1-trimethoxy-(1445-45-0)
EPA Substance Registry System Trimethyl orthoacetate (1445-45-0)
UNSPSC Code 12352112
NACRES NA.22

Safety

Symbol(GHS) Flame (GHS02)Exclamation Mark (GHS07)
Signal wordDanger
Hazard statements H315-H319-H225
Precautionary statements P501-P240-P210-P233-P243-P241-P242-P264-P280-P370+P378-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P403+P235
Hazard Codes  F,Xi
Risk Statements  11-43-38-36/37/38
Safety Statements  16-37/39-24-33-26-7/9
RIDADR  UN 3272 3/PG 2
WGK Germany  1
TSCA  TSCA listed
HazardClass  3
PackingGroup  II
HS Code  29159080
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 2
Skin Sens. 1B
Toxicity LD50 orally in Rabbit: > 2000 mg/kg
NFPA 704:
3
2 1

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