Pentasiloxane,1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl- cas no:141-63-9

NamePentasiloxane,1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-
CAS141-63-9
SynonymsPentasiloxane,dodecamethyl- (6CI,7CI,8CI,9CI);DC 200 Fluid 2;KF96L2CS;
EINECS(EC#)205-492-2
Molecular FormulaC₁₂H₃₆O₄Si₅
Molecular Weight384.93

Appearanceclear colorless liquid
refractive indexn20/D 1.392(lit.)

Hazard Xi: Irritant;
Risk R36/37/38
Safety

Slightly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes:
Xi: Irritant
Risk Statements about Dodecamethylpentasiloxane (141-63-9):
R36/37/38 Irritating to eyes, respiratory system and skin.
Safety Statements about Dodecamethylpentasiloxane (141-63-9):
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39 Wear suitable gloves and eye/face protection. 
Attention:
1. Storage: Store in a cool, dry place. Store in a tightly closed container. Store under nitrogen.
2. Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.

1.

orl-gpg LDLo:50 g/kg

JIDHAN    Journal of Industrial Hygiene. 30 (1948),332.