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2H-Pyran, also known as dihydropyran, is a heterocyclic organic compound with the molecular formula C5H8O. It is a cyclic ether that consists of a six-membered ring with one oxygen atom and five carbon atoms. 2H-Pyran is an important building block in organic synthesis, particularly in the preparation of various natural products and pharmaceuticals. It is used as a protecting group for alcohols and as a solvent in various chemical reactions. The compound is relatively stable and can be easily synthesized from simple precursors, making it a valuable intermediate in the synthesis of more complex molecules.

289-66-7

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289-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 289-66-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,8 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 289-66:
(5*2)+(4*8)+(3*9)+(2*6)+(1*6)=87
87 % 10 = 7
So 289-66-7 is a valid CAS Registry Number.

289-66-7SDS

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 2H-pyran

1.2 Other means of identification

Product number -
Other names 4H-Oxine

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:289-66-7 SDS

289-66-7Relevant academic research and scientific papers

Substituted 4H-pyrans

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, (2008/06/13)

The substituted 4H-pyrans are prepared by reacting either aldehydes or ylidene compounds with suitably substituted β-diketones. The substituted 4H-pyrans according to the invention are suitable as active compounds in medicaments, in particular for the tre

NITROGEN-CONTAINING SPIROCYCLES

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, (2008/06/13)

Spirocycles of general structural formula: STR1 are Class III antiarrhythmic agents.

Intermediate compounds for the preparation of polyene aldehydes

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, (2008/06/13)

A novel process for the preparation of polyene aldehydes which employs as starting materials, substituted 2H pyrans. Novel substituted 2H pyrans and polyene intermediates are also disclosed.

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