2-Hydroxy-3-methyl-5-p-tolylazo-benzoic acid is a complex organic compound with the molecular formula C15H14N2O3. It is characterized by the presence of a hydroxyl group (-OH) at the 2nd carbon, a methyl group (-CH3) at the 3rd carbon, and a p-tolylazo group (a substituted azo group with a p-tolyl ring) at the 5th carbon of the benzoic acid backbone. 2-hydroxy-3-methyl-5-p-tolylazo-benzoic acid is known for its vibrant color and is often used as a chromogenic agent in chemical analysis and as a pH indicator. Its chemical structure allows it to change color in response to changes in pH, making it a valuable tool in various scientific applications.
7708-82-9
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Basic information
- Product Name: 2-hydroxy-3-methyl-5-p-tolylazo-benzoic acid
- Synonyms:
- CAS NO:7708-82-9
- Molecular Formula:
- Molecular Weight: 270.288
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 2-hydroxy-3-methyl-5-p-tolylazo-benzoic acid(CAS DataBase Reference)
- NIST Chemistry Reference: 2-hydroxy-3-methyl-5-p-tolylazo-benzoic acid(7708-82-9)
- EPA Substance Registry System: 2-hydroxy-3-methyl-5-p-tolylazo-benzoic acid(7708-82-9)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 7708-82-9(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 7708-82-9 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 8 respectively; the second part has 2 digits, 8 and 2 respectively.Calculate Digit Verification of CAS Registry Number 7708-82:
(6*7)+(5*7)+(4*0)+(3*8)+(2*8)+(1*2)=119
119 % 10 = 9
So 7708-82-9 is a valid CAS Registry Number.
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2-hydroxy-3-methyl-5-p-tolylazo-benzoic acid
