Methyltrimethoxysilane, 97%

Product Code.	Quantity	Packaging	unitSize
10338520	50 mL	Glass bottle	50mL
10296240	5 mL	Glass bottle	5mL
10472431	250 mL	Glass bottle	250mL
10351564	1 L	Glass bottle	1 L

Product Code. 10338520 Supplier Thermo Scientific Acros Supplier No. 250540500

Description

CAS: 1185-55-3 | C₄H₁₂O₃Si | 136.22 g/mol

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 1185-55-3
• Molecular Formula: C₄H₁₂O₃Si
• Molecular Weight (g/mol): 136.22
• MDL Number: MFCD00008342
• InChI Key: BFXIKLCIZHOAAZ-UHFFFAOYSA-N
• Synonym: methyltrimethoxysilane, trimethoxy methyl silane, silane, trimethoxymethyl, union carbide a-163, silane, methyltrimethoxy, methyl trimethoxysilane, silane a-163, dynasylan mtms, unii-0hi0d71mci, methyl-trimethoxysilane
• PubChem CID: 14456
• IUPAC Name: trimethoxy(methyl)silane
• SMILES: CO[Si](C)(OC)OC

• CAS Min %: 96.0
• CAS Max %: 100.0
• Melting Point: -50°C
• Color: Colorless to Yellow
• Density: 0.9500g/mL
• Boiling Point: 102°C
• Flash Point: 11°C
• Infrared Spectrum: Authentic
• Assay Percent Range: 97%
• Packaging: Glass bottle
• Linear Formula: CH₃Si(OCH₃)₃
• Refractive Index: 1.3695 to 1.3715
• Quantity: 50 mL
• Beilstein: 04, 4203
• Specific Gravity: 0.95
• Solubility Information: Solubility in water: decomposes
• Viscosity: 0.5 mPa.s (20°C)
• Formula Weight: 136.22
• Percent Purity: 97%
• Physical Form: Liquid
• Chemical Name or Material: Methyltrimethoxysilane, 97%

Safety and Handling

Product Identifier

• Methyltrimethoxysilane

Signal Word

• Danger

Hazard Category

• Serious eye damage/eye irritation Category 2
• Flammable liquid Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H225-Highly flammable liquid and vapour.
• H315-Causes skin irritation.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.

Precautionary Statement

• P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P233-Keep container tightly closed.
• P240-Ground/bond container and receiving equipment.
• P241-Use explosion-proof electrical/ventilating/lighting/ equipment.
• P242-Use only non-sparking tools.
• P243-Take precautionary measures against static discharge.
• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P264-Wash hands and face thoroughly after handling.
• P271-Use only outdoors or in a well-ventilated area.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/soap.
• P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P312-Call a POISON CENTER/doctor/if you feel unwell.
• P321-Specific treatment (see supplemental first aid instructions on this label).
• P332+P313-If skin irritation occurs: Get medical advice/attention.
• P337+P313-If eye irritation persists: Get medical advice/attention.
• P362+P364-Take off contaminated clothing and wash it before reuse.
• P370+P378-In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
• P403+P233-Store in a well-ventilated place. Keep container tightly closed.
• P403+P235-Store in a well-ventilated place. Keep cool.
• P405-Store locked up.
• P501b-Dispose of contents/container in accordance with local/regional/national/international regulations.

Supplemental information

• MIXTURE LIST-Contain: Methyltrimethoxysilane

SDS

RUO – Research Use Only