4-Brom-3-p-tolyloxy-crotonsaeureethylester, also known as 4-bromo-3-(4-methoxyphenoxy)but-2-enoic acid ethyl ester, is a chemical compound with the molecular formula C12H15BrO4. It is an organic ester derived from crotonic acid, featuring a bromine atom at the 4-position, a para-tolyloxy group (4-methoxyphenoxy) at the 3-position, and an ethyl ester group. 4-Brom-3-p-tolyloxy-crotonsaeureethylester is characterized by its potential applications in the synthesis of various pharmaceuticals and agrochemicals, particularly as an intermediate in the preparation of complex organic molecules. Its structure allows for further functionalization and modification, making it a valuable building block in organic chemistry.

1681-80-7

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Basic information
1. Product Name: 4-Brom-3-p-tolyloxy-crotonsaeureethylester
2. Synonyms:
3. CAS NO:1681-80-7
4. Molecular Formula:
5. Molecular Weight: 299.164
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: 4-Brom-3-p-tolyloxy-crotonsaeureethylester(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-Brom-3-p-tolyloxy-crotonsaeureethylester(1681-80-7)
11. EPA Substance Registry System: 4-Brom-3-p-tolyloxy-crotonsaeureethylester(1681-80-7)
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: 1681-80-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1681-80-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1681-80:
(6*1)+(5*6)+(4*8)+(3*1)+(2*8)+(1*0)=87
87 % 10 = 7
So 1681-80-7 is a valid CAS Registry Number.

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