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1-Pentyne, 4,4-dimethyl-3-methylene-, also known as 4,4-dimethyl-3-methylenepent-1-yne, is an organic compound with the molecular formula C7H12. It is a colorless liquid with a strong, pungent odor. This alkyne derivative features a carbon-carbon triple bond (C≡C) and two methyl groups (CH3) attached to the fourth carbon atom in the pentyne chain. The presence of the triple bond and the methyl groups contribute to its chemical reactivity and stability. 1-Pentyne, 4,4-dimethyl-3-methylene- is used in the synthesis of various organic compounds and can be found in trace amounts in some petroleum products. Due to its flammability and potential health risks, it is essential to handle this chemical with proper safety precautions.

2809-84-9

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2809-84-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2809-84-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,8,0 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2809-84:
(6*2)+(5*8)+(4*0)+(3*9)+(2*8)+(1*4)=99
99 % 10 = 9
So 2809-84-9 is a valid CAS Registry Number.

2809-84-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,2-dimethyl-3-methylene-4-pentyne

1.2 Other means of identification

Product number -
Other names 2-tert-butyl-1-buten-3-yne

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).

More Details:2809-84-9 SDS

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