Undeca-3t-ene-5,7-diyn-2-one is a unique organic compound characterized by its molecular formula C11H8O. This 11-carbon chain features a triple bond (t) at the 3rd position, two triple bonds at the 5th and 7th positions, and a ketone group (-C(=O)-) at the 2nd position. The compound is known for its rigid structure due to the presence of multiple triple bonds, which restrict rotation around the carbon-carbon bonds. It is a colorless liquid with a pungent odor and is insoluble in water but soluble in organic solvents. This chemical is primarily used in the synthesis of various pharmaceuticals and specialty chemicals due to its reactive nature and potential to form complex molecular structures.

99864-98-9

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Basic information
1. Product Name: undec-3t-ene-5,7-diyn-2-one
2. Synonyms:
3. CAS NO:99864-98-9
4. Molecular Formula:
5. Molecular Weight: 160.216
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: undec-3t-ene-5,7-diyn-2-one(CAS DataBase Reference)
10. NIST Chemistry Reference: undec-3t-ene-5,7-diyn-2-one(99864-98-9)
11. EPA Substance Registry System: undec-3t-ene-5,7-diyn-2-one(99864-98-9)
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: 99864-98-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 99864-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,6 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99864-98:
(7*9)+(6*9)+(5*8)+(4*6)+(3*4)+(2*9)+(1*8)=219
219 % 10 = 9
So 99864-98-9 is a valid CAS Registry Number.

99864-98-9Upstream product

99864-98-9Downstream Products

80994-68-9 (E)-2-decen-4,6-diynoic acid

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