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161193-44-8

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161193-44-8 Usage

Uses

Erythromycin A 9,11-Imino Ether is an impurity in the synthesis of Erythromycin (E649950), a macrolide antibiotic with broad spectrum of antibacterial activity.

Check Digit Verification of cas no

The CAS Registry Mumber 161193-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,9 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 161193-44:
(8*1)+(7*6)+(6*1)+(5*1)+(4*9)+(3*3)+(2*4)+(1*4)=118
118 % 10 = 8
So 161193-44-8 is a valid CAS Registry Number.

161193-44-8SDS

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 Erythromycin A 9,11-Imino Ether

1.2 Other means of identification

Product number -
Other names -

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:161193-44-8 SDS

161193-44-8Upstream product

161193-44-8Downstream Products

161193-44-8Relevant articles and documents

Novel transannular rearrangements of azalide iminoethers

Wilkening, Robert R.,Ratcliffe, Ronald W.,Doss, George A.,Mosley, Ralph T.,Ball, Richard G.

, p. 16923 - 16944 (1997)

The transannular reactions between the aglycone hydroxyl groups and the iminoether and lactone groups of the 9a- and 8a-azalide iminoethers 4 and 5 were investigated under a variety of conditions. Translactonization by the 11-hydroxyl groups of 4 and 5 were found to give the corresponding 13-membered iminoethers 21 and 9. The thermal rearrangement of 4 produced an epimeric mixture of the 9,11-iminoethers 15 and 16. Further elaboration of isomer 16 produced 8-epi azithromycin 20. Finally, we have proposed an alternative structure, the amino γ-lactone 25, for one of the reported products (14) from the Beckmann rearrangement of erythromycin A (9E)-oxime 13. An authentic sample of 9a-aza-9a-homoerythromycin A 14 was prepared in three steps from iminoether 4.

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