Benzoic acid, 2-benzoylbenzoic acid, and anhydride are three distinct chemical compounds. Benzoic acid is a simple aromatic carboxylic acid with the chemical formula C7H6O2, commonly used as a food preservative and in the synthesis of various pharmaceuticals. 2-Benzoylbenzoic acid, also known as benzil, is a diketone with the formula C14H10O2, formed by the condensation of two benzoic acid molecules. It is used as a reagent in organic synthesis and as a photosensitizer in photochemistry. Anhydride, in this context, likely refers to benzoic anhydride, which is the anhydride form of benzoic acid, with the formula C14H10O3. It is a colorless solid used as a reagent in organic synthesis and as a plasticizer. These chemicals are interconnected through their benzene ring structure and are important in various industrial and chemical applications.

2669-84-3

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Basic information
1. Product Name: benzoic acid-(2-benzoyl-benzoic acid )-anhydride
2. Synonyms:
3. CAS NO:2669-84-3
4. Molecular Formula:
5. Molecular Weight: 330.34
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: benzoic acid-(2-benzoyl-benzoic acid )-anhydride(CAS DataBase Reference)
10. NIST Chemistry Reference: benzoic acid-(2-benzoyl-benzoic acid )-anhydride(2669-84-3)
11. EPA Substance Registry System: benzoic acid-(2-benzoyl-benzoic acid )-anhydride(2669-84-3)
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: 2669-84-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2669-84-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,6 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2669-84:
(6*2)+(5*6)+(4*6)+(3*9)+(2*8)+(1*4)=113
113 % 10 = 3
So 2669-84-3 is a valid CAS Registry Number.

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