Tri-o-tolylsilyllithium, also known as (o-tolyl)3SiLi, is a colorless, hygroscopic, and highly reactive organolithium compound. It is composed of a silicon atom bonded to three ortho-tolyl groups (methyl-substituted phenyl groups) and a lithium atom. Tri-o-tolylsilyllithium is widely used in organic synthesis as a nucleophile and a strong base, particularly in the formation of carbon-silicon bonds and the deprotonation of acidic protons. Due to its sensitivity to moisture and air, it must be handled under an inert atmosphere, such as nitrogen or argon, and is typically stored and used at low temperatures. Tri-o-tolylsilyllithium plays a crucial role in various chemical reactions, including the synthesis of silyl ethers, cross-coupling reactions, and the formation of organosilicon compounds.

18740-71-1

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Basic information
1. Product Name: Tri-o-tolylsilyllithium
2. Synonyms:
3. CAS NO:18740-71-1
4. Molecular Formula:
5. Molecular Weight: 308.424
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Tri-o-tolylsilyllithium(CAS DataBase Reference)
10. NIST Chemistry Reference: Tri-o-tolylsilyllithium(18740-71-1)
11. EPA Substance Registry System: Tri-o-tolylsilyllithium(18740-71-1)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 18740-71-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 18740-71-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,4 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18740-71:
(7*1)+(6*8)+(5*7)+(4*4)+(3*0)+(2*7)+(1*1)=121
121 % 10 = 1
So 18740-71-1 is a valid CAS Registry Number.

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