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139519-94-1

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139519-94-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139519-94-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,1 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139519-94:
(8*1)+(7*3)+(6*9)+(5*5)+(4*1)+(3*9)+(2*9)+(1*4)=161
161 % 10 = 1
So 139519-94-1 is a valid CAS Registry Number.

139519-94-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-[2,3-dichloro-4-(3-ethylfuran-2-yl)phenoxy]acetic acid

1.2 Other means of identification

Product number -
Other names Acetic acid,[2,3-dichloro-4-(3-ethyl-2-furanyl)phenoxy]

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:139519-94-1 SDS

139519-94-1Downstream Products

139519-94-1Relevant articles and documents

Furans and thiophenes from etacrynic acid

Gorlitzer,Bomeke

, p. 9 - 12 (2007/10/02)

The 1,4-dicarbonyl- and 1,4,7-tricarbonyl compounds 1 react with polyphosphoric acid (PPA) to yield the furans 3; with P4S10 the thiophenes 4 are obtained. The γ-keto carboxylic acid 2 cyclizes with PPA to form the α,β-unsaturated butyrolactone 6. 2 is reduced by NaBH4 chemo- and diastereoselectively to give the γ-hydroxy carboxylic acid 5. The lactone 7 is prepared by dehydration of 5 with PPA. The sulfones 8a,b are obtained from the thiophenes 4a,b by oxidation with magnesium monoperoxyphthalate (MMPP). Under the same conditions the furan 3b is cleaved to yield the enedione 9, which tautomerizes slowly forming 10.

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