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3-Oxa-1-azaspiro[4.4]nonane-2,4-dione, also known as 1-Azaspiro[4.4]nonane-2,4-dione, 3-oxa-, is a chemical compound with the molecular formula C7H11NO3. It is a heterocyclic compound, featuring a spiro structure with a nitrogen atom and an oxygen atom in the ring. 3-Oxa-1-azaspiro[4.4]nonane-2,4-dione(6CI,7CI,8CI,9CI) is characterized by its unique molecular structure, which includes a seven-membered ring with a nitrogen atom and an oxygen atom, and two carbonyl groups (C=O) at positions 2 and 4. It is an important intermediate in the synthesis of various pharmaceuticals and organic compounds due to its reactive functional groups and unique ring structure. The compound is typically synthesized through various chemical reactions and can be used in the preparation of complex molecules with potential applications in the fields of medicine, chemistry, and materials science.

3253-44-9

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3253-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3253-44-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,5 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3253-44:
(6*3)+(5*2)+(4*5)+(3*3)+(2*4)+(1*4)=69
69 % 10 = 9
So 3253-44-9 is a valid CAS Registry Number.

3253-44-9SDS

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 3-oxa-1-azaspiro[4.4]nonane-2,4-dione

1.2 Other means of identification

Product number -
Other names Cyclopentanecarbamic acid,1-carboxy-,cyclic anhydride

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:3253-44-9 SDS

3253-44-9Relevant academic research and scientific papers

Synthesis of sterically hindered N-acylated amino acids from N-carboxyanhydrides

Schaefer, Gabriel,Bode, Jeffrey W.

supporting information, p. 1526 - 1529 (2014/04/03)

Sterically hindered N-acyl, gem-disubstituted amino acids are easily prepared via the addition of organometallic reagents to N-carboxyanhydrides (NCA). The process tolerates a wide variety of functional groups and allows the synthesis of amide products not readily accessible by traditional acylation chemistry. The existence of an isocyanate intermediate was established by in situ IR spectroscopy.

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