Home > Organosilicon Compounds> 1,3-Bis(trimethylsilyl)urea

1,3-Bis(trimethylsilyl)urea

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Origin: China

Cas No: 18297-63-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details
CAS No.:
18297-63-7
Other Names:
1,3-Bis(trimethylsilyl)urea
MF:
C7H20N2OSi2
EINECS No.:
242-177-9
Place of Origin:
Shandong, China
Type:
Agrochemical Intermediates
Purity:
99%
Brand Name:
Finerchem
Model Number:
18297-63-7
Application:
Organic Intermediate
Appearance:
White powder
Product name:
1,3-Bis(trimethylsilyl)urea
CAS:
18297-63-7
Appearence:
White powder
Molecular formula:
C7H20N2OSi2
Molecular Weight:
204.42
Packaging&Delivery
Packaging Details
Aluminum foil bag for within 10kg
Fiber drum for 10kg and more
Shipping: By air, by sea or by courier (VIP account of TNT, DHL, Fedex and EMS)
Port
Qingdao or Shanghai
Lead Time:
Quantity(Kilograms) 1 - 1 >1
Est. Time(days) 2 To be negotiated

Property

CAS No.: 18297-63-7 Formula: C7H20N2OSi2 Molecular Weight: 204.41700

Basic Info

Chemical Name	1,3-Bis(trimethylsilyl)urea
Synonyms	bistrimethylsilylurea; BSU; Urea,TMS; Hexamethyl disilaurea; N,N'-Bis(trimethylsilyl)urea;
CAS No.	18297-63-7
Molecular Formula	C7H20N2OSi2
Molecular Weight	204.41700
PSA	41.13000
LogP	2.73720

Properties

Appearance & Physical State	White needle, crystalline powder with slight amine smell.
Density	0.887 g/cm3
Boiling Point	222ºC
Melting Point	232ºC
Flash Point	222ºC
Refractive Index	1.442
Stability	Stable under normal temperatures and pressures.
Storage Condition	Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Vapor Pressure	0.177mmHg at 25°C

Safety Info

Safety Statements	S24/25
HS Code	29310095
WGK Germany	3
RIDADR	UN 1325
Risk Statements	R11
Hazard Codes	F; Xn

Synthesis Route

urea+hexamethyldisilazane→1,3-Bis(trimethylsilyl)urea
BIS(TRIMETHYLSILYL) SULFATE+urea→1,3-Bis(trimethylsilyl)urea
N,N-Dimethyltrimethylsilylamine+urea→1,3-Bis(trimethylsilyl)urea

Precursor

urea
BIS(TRIMETHYLSILYL) SULFATE
hexamethyldisilazane
N,N-Dimethyltrimethylsilylamine

Downstream Product

trimethyl(nonoxy)silane
trimethylsilyl 2-chloroacetate
TRIMETHYLSILYL ISOCYANATE
hexamethyldisiloxane

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