Diphenyldimethoxysilane 6843-66-9

Product name:Diphenyldimethoxysilane
CAS：6843-66-9
MF：C14H16O2Si
MW：244.36
EINECS:229-929-1

Product Description：

Product name:Diphenyldimethoxysilane

CAS：6843-66-9

MF：C14H16O2Si

MW：244.36

EINECS:229-929-1

Use:

1. Used as a precursor for preparing silica

2. Used as an electrolyte additive in lithium-ion batteries

3. Used in propylene polymerization reaction to improve regularity

Specifications :

Diphenyldimethoxysilane Basic information
Product Name:	Diphenyldimethoxysilane
CAS:	6843-66-9
MF:	C14H16O2Si
MW:	244.36
EINECS:	229-929-1
Mol File:	6843-66-9.mol
Diphenyldimethoxysilane Chemical Properties
Melting point	<0°C
Boiling point	161 °C15 mm Hg(lit.)
density	1.08 g/mL at 20 °C(lit.)
refractive index	n20/D 1.541
Fp	121°C
form	liquid
color	colorless
Specific Gravity	1.0771
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	2940458
InChIKey	AHUXYBVKTIBBJW-UHFFFAOYSA-N
CAS DataBase Reference	6843-66-9(CAS DataBase Reference)
NIST Chemistry Reference	Silane, dimethoxydiphenyl-(6843-66-9)
EPA Substance Registry System	Silane, dimethoxydiphenyl- (6843-66-9)

Testing Items	Standard Requirements	Testing Result
Color	Colorless or yellowish clear liquid	Qualified
Content	≥97.0%	99%
refractive index	1.535-1.545	Qualified
PH value	neuter	Qualified
Boiling point	286℃	Qualified

公司信息

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.