3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester is a chemical compound with the molecular formula C11H16O3S. It is an ester derivative of 2-thiophenecarboxylic acid, featuring a tert-butoxy group at the 3-position and an ethoxy group at the carboxylic acid moiety. 3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester is often used as an intermediate in the synthesis of various pharmaceuticals and agrochemicals, particularly those containing thiophene rings. Its chemical structure provides stability and reactivity, making it a valuable building block in organic synthesis.

5612-69-1

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Basic information
1. Product Name: 3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester
2. Synonyms: 3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester
3. CAS NO:5612-69-1
4. Molecular Formula: C11H16O3S
5. Molecular Weight: 228.31
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 5612-69-1.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: 3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester(CAS DataBase Reference)
10. NIST Chemistry Reference: 3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester(5612-69-1)
11. EPA Substance Registry System: 3-tert-Butoxy-2-thiophenecarboxylic acid ethyl ester(5612-69-1)
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: 5612-69-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 5612-69-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,1 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5612-69:
(6*5)+(5*6)+(4*1)+(3*2)+(2*6)+(1*9)=91
91 % 10 = 1
So 5612-69-1 is a valid CAS Registry Number.

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