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Cyclopenta[4,5]pentaleno[1,6a-b]oxirene, also known as 1,2,3,4,5,6-hexahydropentalene oxide, is a chemical compound with the molecular formula C5H6O. It is a cyclic organic molecule that features a five-membered ring with a double bond and an oxygen atom connected to two adjacent carbon atoms, forming an oxirane ring. Cyclopenta[4,5]pentaleno[1,6a-b]oxirene(9CI) is of interest in organic chemistry due to its unique structure and potential applications in the synthesis of various organic compounds. It is typically synthesized through the reaction of cyclopentadiene with an oxidizing agent, such as peracetic acid or dimethyldioxirane. Cyclopenta[4,5]pentaleno[1,6a-b]oxirene is a reactive intermediate and can undergo further reactions, such as ring-opening or rearrangements, making it a valuable building block in organic synthesis.

4940-62-9

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Basic information
1. Product Name: Cyclopenta[4,5]pentaleno[1,6a-b]oxirene(9CI)
2. Synonyms: Cyclopent[a]oxireno[d]pentalene(8CI); 6aH-Cyclopenta[a]pentalene, 6,6a-epoxy-
3. CAS NO:4940-62-9
4. Molecular Formula: C11H6 O
5. Molecular Weight:
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 4940-62-9.mol
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: Cyclopenta[4,5]pentaleno[1,6a-b]oxirene(9CI)(CAS DataBase Reference)
10. NIST Chemistry Reference: Cyclopenta[4,5]pentaleno[1,6a-b]oxirene(9CI)(4940-62-9)
11. EPA Substance Registry System: Cyclopenta[4,5]pentaleno[1,6a-b]oxirene(9CI)(4940-62-9)
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: 4940-62-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4940-62-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,4 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4940-62:
(6*4)+(5*9)+(4*4)+(3*0)+(2*6)+(1*2)=99
99 % 10 = 9
So 4940-62-9 is a valid CAS Registry Number.

4940-62-9SDS

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According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name	CTK1D8678

1.2 Other means of identification

Product number	-
Other names	-

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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