Cyclopentanone O,S-ethylenethioacetal is a chemical compound with the molecular formula C7H12OS. It is a cyclic ketone derivative that features a sulfur atom and an ethylenethioacetal group attached to the carbonyl group. Cyclopentanone O,S-ethylenethioacetal is known for its unique structure, which combines the properties of a cycloalkanone with those of a thioacetal. It is used in organic synthesis as an intermediate for the preparation of various pharmaceuticals and agrochemicals, as well as in the synthesis of complex organic molecules. The compound's reactivity and stability make it a valuable building block in the development of new chemical entities.

176-38-5

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Basic information
1. Product Name: Cyclopentanone O,S-ethylenethioacetal
2. Synonyms: 1-Oxa-4-thiaspiro[4.4]nonane;Cyclopentanone O,S-ethylenethioacetal
3. CAS NO:176-38-5
4. Molecular Formula: C₇H₁₂OS
5. Molecular Weight: 144.2346
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 176-38-5.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 243.2°Cat760mmHg
3. Flash Point: 100.9°C
4. Appearance: /
5. Density: 1.12g/cm³
6. Vapor Pressure: 0.0508mmHg at 25°C
7. Refractive Index: 1.541
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: Cyclopentanone O,S-ethylenethioacetal(CAS DataBase Reference)
11. NIST Chemistry Reference: Cyclopentanone O,S-ethylenethioacetal(176-38-5)
12. EPA Substance Registry System: Cyclopentanone O,S-ethylenethioacetal(176-38-5)
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: 176-38-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 176-38-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,7 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 176-38:
(5*1)+(4*7)+(3*6)+(2*3)+(1*8)=65
65 % 10 = 5
So 176-38-5 is a valid CAS Registry Number.

InChI:InChI=1/C7H12OS/c1-2-4-7(3-1)8-5-6-9-7/h1-6H2

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