Methylcarbamic acid 3-(trimethylsilyl)phenyl ester, also known as 3-(trimethylsilyl)phenyl N-methylcarbamate, is an organosilicon compound with the chemical formula C11H19NO2Si. It is a colorless liquid that is soluble in organic solvents and has a molecular weight of 223.36 g/mol. Methylcarbamic acid 3-(trimethylsilyl)phenyl ester is primarily used as a protecting group in organic synthesis, particularly in the protection of phenolic hydroxyl groups. The trimethylsilyl group (TMS) is a common protecting group that can be easily introduced and removed under mild conditions, making it a valuable tool in the synthesis of complex organic molecules. The ester linkage in Methylcarbamic acid 3-(trimethylsilyl)phenyl ester allows for the formation of an intermediate that can be further reacted or hydrolyzed to regenerate the free phenol.

2921-34-8

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Basic information
1. Product Name: Methylcarbamic acid 3-(trimethylsilyl)phenyl ester
2. Synonyms: Methylcarbamic acid 3-(trimethylsilyl)phenyl ester
3. CAS NO:2921-34-8
4. Molecular Formula: C₁₁H₁₇NO₂Si
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 2921-34-8.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Methylcarbamic acid 3-(trimethylsilyl)phenyl ester(CAS DataBase Reference)
10. NIST Chemistry Reference: Methylcarbamic acid 3-(trimethylsilyl)phenyl ester(2921-34-8)
11. EPA Substance Registry System: Methylcarbamic acid 3-(trimethylsilyl)phenyl ester(2921-34-8)
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: 2921-34-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2921-34-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,2 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2921-34:
(6*2)+(5*9)+(4*2)+(3*1)+(2*3)+(1*4)=78
78 % 10 = 8
So 2921-34-8 is a valid CAS Registry Number.

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