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5-FLUORO-2-HYDROXYBENZOIC ACID ETHYL ESTER
Cas No: 443-12-9
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ZHEJIANG JIUZHOU CHEM CO.,LTD
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FT-0738596
Cas No: 443-12-9
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Finetech Industry Limited
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Ethyl 5-Fluoro-2-hydroxybenzoate
Cas No: 443-12-9
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Debye Scientific
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ethyl 5-fluoro-2-hydroxybenzoate
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NovaChemistry
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443-12-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 443-12-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,4 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 443-12:
(5*4)+(4*4)+(3*3)+(2*1)+(1*2)=49
49 % 10 = 9
So 443-12-9 is a valid CAS Registry Number.

InChI:InChI=1/C9H9FO3/c1-2-13-9(12)7-5-6(10)3-4-8(7)11/h3-5,11H,2H2,1H3

443-12-9SDS

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	ethyl 5-fluoro-2-hydroxybenzoate

1.2 Other means of identification

Product number	-
Other names	5-fluoro-2-hydroxy-benzoic acid ethyl ester

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:443-12-9 SDS

443-12-9Upstream product

443-12-9Downstream Products

443-12-9Relevant articles and documents

Overcoming the Deallylation Problem: Palladium(II)-Catalyzed Chemo-, Regio-, and Stereoselective Allylic Oxidation of Aryl Allyl Ether, Amine, and Amino Acids

Begam, Hasina Mamataj,Jana, Ranjan,Manna, Kartic,Samanta, Krishanu

supporting information, p. 7443 - 7449 (2020/10/09)

We report herein a Pd(II)/bis-sulfoxide-catalyzed intramolecular allylic C-H acetoxylation of aryl allyl ether, amine, and amino acids with the retention of a labile allyl moiety. Mechanistically, the reaction proceeds through a distinct double-bond isomerization from the allylic to the vinylic position followed by intramolecular carboxypalladation and the β-hydride elimination pathway. For the first time, C-H oxidation of N-allyl-protected amino acids to furnish five-membered heterocycles through 1,3-syn-addition is established with excellent diastereoselectivity.

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CAS

443-12-9