1445-45-0

Name Trimethyl orthoacetate
CAS 1445-45-0
EINECS(EC#) 215-892-9
Molecular Formula C5H12O3
MDL Number MFCD00008477
Molecular Weight 120.15
MOL File 1445-45-0.mol
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Chemical Properties

Appearance CLEAR COLOURLESS TO SLIGHTLY BROWN LIQUID
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.)
Fp  62 °F
storage temp.  Flammables area
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)
NIST Chemistry Reference Ethane, 1,1,1-trimethoxy-(1445-45-0)
EPA Substance Registry System 1445-45-0(EPA Substance)
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Safety Data

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H317-H319
Precautionary statements  P210-P233-P240-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  F,Xi
Risk Statements 
R11:Highly Flammable.
R43:May cause sensitization by skin contact.
R38:Irritating to the skin.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S37/39:Wear suitable gloves and eye/face protection .
S24:Avoid contact with skin .
S33:Take precautionary measures against static discharges .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S7/9:Keep container tightly closed and in a well-ventilated place .
RIDADR  UN 3272 3/PG 2
WGK Germany  1
TSCA  Yes
REACH Registrations Active
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

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Material Safety Data Sheet(MSDS)

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