3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione, also known as camphorquinone, is a chemical compound with the molecular formula C18H24O3. It is a white crystalline powder that is widely used in dentistry as a photoinitiator in dental composite resins. Camphorquinone is activated by blue light, which triggers a polymerization reaction, hardening the resin and bonding it to the tooth structure. 3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione is valued for its ability to efficiently initiate the curing process, leading to strong and durable dental restorations. It is also known for its low toxicity and minimal side effects, making it a safe choice for dental applications.
1891-34-5
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Basic information
- Product Name: 3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione
- Synonyms: 3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione;Cohulupone
- CAS NO:1891-34-5
- Molecular Formula:
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
- Mol File: 1891-34-5.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: 436.434°C at 760 mmHg
- Flash Point: 231.885°C
- Appearance: /
- Density: 1.09g/cm3
- Vapor Pressure: 0mmHg at 25°C
- Refractive Index: 1.522
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione(CAS DataBase Reference)
- NIST Chemistry Reference: 3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione(1891-34-5)
- EPA Substance Registry System: 3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione(1891-34-5)
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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: 1891-34-5(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 1891-34-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,9 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.Calculate Digit Verification of CAS Registry Number 1891-34:
(6*1)+(5*8)+(4*9)+(3*1)+(2*3)+(1*4)=95
95 % 10 = 5
So 1891-34-5 is a valid CAS Registry Number.
InChI:InChI=1/C19H26O4/c1-11(2)7-9-19(10-8-12(3)4)17(22)14(15(20)13(5)6)16(21)18(19)23/h7-8,13,21H,9-10H2,1-6H3
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3,3-Bis(3-methyl-2-butenyl)-5-(2-methyl-1-oxopropyl)-1,2,4-cyclopentanetrione
