1,3-Bis(3-aminopropyl)tetramethyldisiloxane [Monomer for silicon modified polyamides] , >95.0%(GC) , 2469-55-8

CAS NO.：2469-55-8

Empirical Formula: C10H28N2OSi2

Molecular Weight: 248.51

MDL number: MFCD00039786

EINECS: 219-588-7

PRODUCT Properties

• Boiling point: 132 °C11 mm Hg(lit.)
• Density: 0.901 g/mL at 20 °C(lit.)
• vapor pressure: 0.27Pa at 20℃
• refractive index: n20/D 1.451
• Flash point: 91°C
• storage temp.: Inert atmosphere,2-8°C
• pka: 10.96±0.10(Predicted)
• form: clear liquid
• color: Colorless to Light yellow to Light orange
• Specific Gravity: 0.897
• Water Solubility: Slightly soluble in water.
• Sensitive: Air Sensitive
• Hydrolytic Sensitivity: 4: no reaction with water under neutral conditions
• BRN: 1760876
• InChIKey: GPXCORHXFPYJEH-UHFFFAOYSA-N
• LogP: 1.3 at 20℃
• CAS DataBase Reference: 2469-55-8(CAS DataBase Reference)
• EPA Substance Registry System: 1-Propanamine, 3,3'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis- (2469-55-8)

Description and Uses

1,3-Bis(3-aminopropyl)tetramethyldisiloxane is a valuable diamino-functional siloxane monomer and modifier. Its unique combination of flexible siloxane backbone and reactive amine groups makes it essential for creating flexible, tough silicones, modifying epoxy resins, synthesizing siloxane-containing polymers (polyamides, polyimides), and enhancing adhesion in various materials applications. Its moisture sensitivity requires careful handling and storage.

1,3-Bis(3-aminopropyl)tetramethyldisiloxane is an endcapper for the synthesis of aminopropyl-terminated silicone fluids and for the production of silicone-epoxy and silicone polyimide copolymers especially useful in electronics applications. A unique manufacturing process insures that It has only gamma - aminopropyl substitution and none of the beta isomer. This is expected to give better reactivity in copolymer synthesis and improved heat stability.
1,3-Bis(3-aminopropyl)tetramethyldisiloxane is an alkaline material due to its amine reactive groups. Care should be exercised in handling it to prevent contact with skin and eyes. Wear safety glasses with side shields and rubber gloves when handling.

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H227-H314
• Precautionary statements: P210-P260-P264-P280-P301+P330+P331+P310-P303+P361+P353+P310+P363-P304+P340+P310-P305+P351+P338+P310-P370+P378-P403+P235-P405-P501-P210e-P260h-P303+P361+P353-P305+P351+P338-P501a
• Hazard Codes: C
• Risk Statements: 34
• Safety Statements: 26-28-36/37/39-45-36/37/38
• RIDADR: UN 3267 8/PG 2
• WGK Germany: 3
• RTECS: JM9235000
• F: 10-21
• TSCA: TSCA listed
• HazardClass: 8
• PackingGroup: III
• HS Code: 29319090
• Toxicity: LD50 ipr-mus: 80 mg/kg RCRVAB 38,975,69
• Limited Quantities: 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)