1,3-Bis(3-aminopropyl)tetramethyldisiloxane
- Product Name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane
- CAS No.
- 2469-55-8
- Chemical Name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane
- Synonyms
- 1,3-BIS(3-AMINOPROPYL)-1,1,3,3-TETRAMETHYLDISILOXANE;1,3-Bis(3-aminopropyl)-1,1,3,3-tetramethyldislloxane;b1710;DK236;DK694;ar96447;DKSI067;DKFELEX0177;Amino Capper;BIS(AMINOPROPYL)TETRA
- CBNumber
- CB2364269
- Molecular Formula
- C10H28N2OSi2
- Formula Weight
- 248.51
- MOL File
- 2469-55-8.mol
1,3-Bis(3-aminopropyl)tetramethyldisiloxane Property
- 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
- form
- clear liquid
- pka
- 10.96±0.10(Predicted)
- Specific Gravity
- 0.897
- color
- Colorless to Light yellow to Light orange
- 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)
Safety
- 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
- Yes
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29319090
- Toxicity
- LD50 ipr-mus: 80 mg/kg RCRVAB 38,975,69
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H227Combustible liquid
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378In case of fire: Use … for extinction.
P403+P235Store in a well-ventilated place. Keep cool.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- B1552
- Product name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane [Monomer for silicon modified polyamides]
- Purity
- >83.0%(GC)
- Packaging
- 5g
- Price
- $26
- Updated
- 2025/07/31
- Product number
- B1552
- Product name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane [Monomer for silicon modified polyamides]
- Purity
- >83.0%(GC)
- Packaging
- 25g
- Price
- $67
- Updated
- 2025/07/31
- Product number
- A629398
- Product name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane
- Packaging
- 50mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- J54660
- Product name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane
- Packaging
- 25g
- Price
- $47
- Updated
- 2021/12/16
- Product number
- 7612AJ
- Product name
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane
- Packaging
- 25g
- Price
- $63
- Updated
- 2021/12/16
1,3-Bis(3-aminopropyl)tetramethyldisiloxane Chemical Properties,Usage,Production
Description
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.
Chemical Properties
Clear colorless to pale yellow liquid
Uses
1,3-Bis(aminopropyl)tetramethyldisiloxane is used as a curing agent for epoxy molding compounds, which is utilized for high-reliability semiconductor devices. It is also used to prepare siloxane- urea copymers from 4,4?-diphenylmethane diisocyanate.
Uses
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.
Production Methods
A glass flask with a stirrer, reflux condenser, thermometer, and dropping funnel was charged with N, N-bis(trimethylsilyl)allylamine. A 4% isopropyl alcohol solution of H2 PtCl6.6H2 O. From the funnel, dimethyl ethoxy silane was added dropwise to the flask at 70° C. over 3 hours for hydrosilylation reaction. The reaction solution was ripened for one hour at the temperature. After adding ethanol and dodecylbenzenesulfonic acidd, the reaction solution was refluxed for 6 hours, completing the desilylation reaction. The reaction solution was transferred to a distillation apparatus where the ethanol and trimethyl ethoxy silane were distilled under atmospheric pressure. Water was added to the remainder, which was refluxed for 2 hours. Vacuum distillation was then carried out to collect 1,3-Bis(3-aminopropyl)tetramethyldisiloxane.
Reactivity Profile
1,3-Bis(3-aminopropyl)tetramethyldisiloxane participate in typical amine reactions: epoxy curing (forming crosslinks), isocyanate reactions (forming ureas), salt formation, Michael additions, condensation reactions, etc. The siloxane Si-O bonds can hydrolyze under acidic or basic conditions.
Flammability and Explosibility
Non flammable
Safety Profile
Poison by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx.
1,3-Bis(3-aminopropyl)tetramethyldisiloxane Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 1,3-Bis(3-aminopropyl)tetramethyldisiloxane manufacturers
- Product
- 1, 3-Bis (aminopropyl) Tetramethyldisiloxane 2469-55-8
- Price
- US $79.00-38.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-11-28
- Product
- 1,3-Bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane 2469-55-8
- Price
- US $0.00-0.00/kg
- Min. Order
- 0.10000000149011612kg
- Purity
- 98%
- Supply Ability
- 500tons
- Release date
- 2024-12-17
- Product
- 1,3-Bis(3-aminopropyl)tetramethyldisiloxane 2469-55-8
- Price
- US $30.00-10.00/KG
- Min. Order
- 50KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-11-05