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1-Hepten-5-yne is an organic compound with the molecular formula C7H10. It is a conjugated diene-yne, which means it contains a triple bond (C≡C) and a double bond (C=C) separated by a single bond. The compound has a linear structure with seven carbon atoms, where the triple bond is located between the fifth and sixth carbon atoms, and the double bond is between the first and second carbon atoms. 1-Hepten-5-yne is a colorless liquid with a pungent odor and is insoluble in water but soluble in organic solvents. It is used as a chemical intermediate in the synthesis of various organic compounds and can be found in trace amounts in some natural products. Due to its reactive nature, it is sensitive to light, heat, and air, and should be stored under controlled conditions to prevent decomposition.

821-40-9

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821-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 821-40-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,2 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 821-40:
(5*8)+(4*2)+(3*1)+(2*4)+(1*0)=59
59 % 10 = 9
So 821-40-9 is a valid CAS Registry Number.

821-40-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name hept-1-en-5-yne

1.2 Other means of identification

Product number -
Other names 1-Hepten-5-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:821-40-9 SDS

821-40-9Upstream product

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