Diethylketene dimer, also known as 4,4-diethyl-3,5-dioxo-2,6-heptanedione or 4,4-diethyl-3,5-dioxohexan-2,6-dione, is a colorless to pale yellow liquid with a molecular formula of C8H12O3 and a molecular weight of 156.18 g/mol. It is an organic compound derived from the dimerization of diethylketene, a highly reactive molecule. Diethylketene dimer is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals. It is characterized by its strong reactivity and ability to form stable adducts with various nucleophiles, making it a valuable building block in organic synthesis.

3898-61-1

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Basic information
1. Product Name: diethylketene dimer
2. Synonyms: diethylketene dimer
3. CAS NO:3898-61-1
4. Molecular Formula:
5. Molecular Weight: 196.29
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: diethylketene dimer(CAS DataBase Reference)
10. NIST Chemistry Reference: diethylketene dimer(3898-61-1)
11. EPA Substance Registry System: diethylketene dimer(3898-61-1)
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: 3898-61-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 3898-61-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,9 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3898-61:
(6*3)+(5*8)+(4*9)+(3*8)+(2*6)+(1*1)=131
131 % 10 = 1
So 3898-61-1 is a valid CAS Registry Number.

3898-61-1Upstream product

90720-25-5 3-(tert-Butyl-dimethyl-silanyloxy)-3-(4-chloro-phenyl)-2,2-diethyl-cyclobutanone

3898-61-1Downstream Products

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