3-Methylenedihydro-2H-pyran-2,6(3H)-dione is a chemical compound with the molecular formula C6H6O3. It is a heterocyclic compound, specifically a dihydro-2H-pyran derivative, which features a six-membered ring containing one oxygen atom and five carbon atoms. The compound has a methylene group (CH2) at the 3-position and two ketone functional groups at the 2 and 6 positions. This molecule is known for its potential applications in the synthesis of various organic compounds and pharmaceuticals, as well as its role as an intermediate in chemical reactions. Its structure and reactivity make it an interesting target for researchers in the field of organic chemistry.

3621-63-4

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Basic information
1. Product Name: 3-methylenedihydro-2H-pyran-2,6(3H)-dione
2. Synonyms:
3. CAS NO:3621-63-4
4. Molecular Formula:
5. Molecular Weight: 126.112
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: 3-methylenedihydro-2H-pyran-2,6(3H)-dione(CAS DataBase Reference)
10. NIST Chemistry Reference: 3-methylenedihydro-2H-pyran-2,6(3H)-dione(3621-63-4)
11. EPA Substance Registry System: 3-methylenedihydro-2H-pyran-2,6(3H)-dione(3621-63-4)
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: 3621-63-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 3621-63-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3621-63:
(6*3)+(5*6)+(4*2)+(3*1)+(2*6)+(1*3)=74
74 % 10 = 4
So 3621-63-4 is a valid CAS Registry Number.

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