2-Oxalyl-terephthalic acid, also known as 2-oxo-1,4-benzenedicarboxylic acid, is a white crystalline organic compound with the chemical formula C10H6O6. It is a derivative of terephthalic acid, featuring an oxalyl group (a carbonyl group attached to two carbon atoms) at the 2-position. 2-Oxalyl-terephthalic acid is an important intermediate in the synthesis of various pharmaceuticals, dyes, and polymers, such as polyethylene terephthalate (PET). It is typically synthesized through the oxidation of 1,4-cyclohexanedione or by the condensation of oxalic acid with phthalic anhydride. Due to its versatile chemical properties, 2-oxalyl-terephthalic acid plays a significant role in the chemical industry, contributing to the production of a wide range of products.

4733-49-7

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Basic information
1. Product Name: 2-Oxalyl-terephthalic acid
2. Synonyms:
3. CAS NO:4733-49-7
4. Molecular Formula:
5. Molecular Weight: 238.153
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: 2-Oxalyl-terephthalic acid(CAS DataBase Reference)
10. NIST Chemistry Reference: 2-Oxalyl-terephthalic acid(4733-49-7)
11. EPA Substance Registry System: 2-Oxalyl-terephthalic acid(4733-49-7)
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: 4733-49-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4733-49-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,3 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4733-49:
(6*4)+(5*7)+(4*3)+(3*3)+(2*4)+(1*9)=97
97 % 10 = 7
So 4733-49-7 is a valid CAS Registry Number.

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2142-73-6 1-(2,5-dimethylphenyl)-1-ethanone

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