Cyclohexa-2,5-diene-1,2-dicarboxylic acid-anhydride, also known as phthalic anhydride, is a white, crystalline organic compound with the chemical formula C8H4O3. It is a key industrial chemical used in the production of various plastics, resins, and other materials. Phthalic anhydride is formed by the oxidation of naphthalene or o-xylene and is widely used as a precursor in the synthesis of phthalate esters, which serve as plasticizers, solvents, and monomers for the production of polymers. Due to its versatile applications, phthalic anhydride is an essential component in the chemical industry, contributing to the manufacturing of products such as polyvinyl chloride (PVC), unsaturated polyester resins, and alkyd resins.

1515-22-6

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Basic information
1. Product Name: cyclohexa-2,5-diene-1,2-dicarboxylic acid-anhydride
2. Synonyms: cyclohexa-2,5-diene-1,2-dicarboxylic acid-anhydride
3. CAS NO:1515-22-6
4. Molecular Formula:
5. Molecular Weight: 150.134
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: cyclohexa-2,5-diene-1,2-dicarboxylic acid-anhydride(CAS DataBase Reference)
10. NIST Chemistry Reference: cyclohexa-2,5-diene-1,2-dicarboxylic acid-anhydride(1515-22-6)
11. EPA Substance Registry System: cyclohexa-2,5-diene-1,2-dicarboxylic acid-anhydride(1515-22-6)
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: 1515-22-6(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1515-22-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,1 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1515-22:
(6*1)+(5*5)+(4*1)+(3*5)+(2*2)+(1*2)=56
56 % 10 = 6
So 1515-22-6 is a valid CAS Registry Number.

1515-22-6Upstream product

1515-22-6Downstream Products

635-08-5 cyclohex-1-ene-1,2-dicarboxylic acid

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