Trimethoxycarbonium tetrafluoroborate, also known as trimethoxymethylium tetrafluoroborate or (trimethoxymethyl)trifluoroborate, is a chemical compound with the formula (CH3O)3C+BF4-. It is a colorless, hygroscopic, and moisture-sensitive solid that is widely used as a reagent in organic synthesis. trimethoxycarbonium tetrafluoroborate is particularly useful in the formation of carbon-carbon bonds, such as in the Mukaiyama aldol reaction, where it acts as a Lewis acid catalyst. Trimethoxycarbonium tetrafluoroborate is also employed in the synthesis of various organic compounds, including pharmaceuticals and natural products, due to its ability to activate carbonyl groups and promote selective reactions. Its stability and reactivity make it a valuable tool in the field of organic chemistry.

687-74-1

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Basic information
1. Product Name: trimethoxycarbonium tetrafluoroborate
2. Synonyms: trimethoxycarbonium tetrafluoroborate
3. CAS NO:687-74-1
4. Molecular Formula:
5. Molecular Weight: 191.918
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: trimethoxycarbonium tetrafluoroborate(CAS DataBase Reference)
10. NIST Chemistry Reference: trimethoxycarbonium tetrafluoroborate(687-74-1)
11. EPA Substance Registry System: trimethoxycarbonium tetrafluoroborate(687-74-1)
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: 687-74-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 687-74-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,8 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 687-74:
(5*6)+(4*8)+(3*7)+(2*7)+(1*4)=101
101 % 10 = 1
So 687-74-1 is a valid CAS Registry Number.

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