4-Benzolsulfonyl-phenylessigsaeure-methylester, also known as 4-(benzenesulfonyl)phenyl acetic acid methyl ester, is an organic compound with the chemical formula C15H14O4S. It is a derivative of phenylacetic acid, featuring a benzenesulfonyl group attached to the para position of the phenyl ring. 4-Benzolsulfonyl-phenylessigsaeure-methylester is characterized by its ester functionality, with a methyl group attached to the carboxylic acid group, and a sulfonyl group attached to the phenyl ring. It is a white crystalline solid and is used in the synthesis of various pharmaceuticals and chemical intermediates due to its unique structural features.

7705-66-0

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Basic information
1. Product Name: 4-Benzolsulfonyl-phenylessigsaeure-methylester
2. Synonyms:
3. CAS NO:7705-66-0
4. Molecular Formula:
5. Molecular Weight: 290.34
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-Benzolsulfonyl-phenylessigsaeure-methylester(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-Benzolsulfonyl-phenylessigsaeure-methylester(7705-66-0)
11. EPA Substance Registry System: 4-Benzolsulfonyl-phenylessigsaeure-methylester(7705-66-0)
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: 7705-66-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 7705-66-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,0 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7705-66:
(6*7)+(5*7)+(4*0)+(3*5)+(2*6)+(1*6)=110
110 % 10 = 0
So 7705-66-0 is a valid CAS Registry Number.

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7705-67-1 2,3-Bis-<4-benzolsulfonyl-phenyl>-propionsaeure-methylester

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