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21721-08-4

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21721-08-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21721-08-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,2 and 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21721-08:
(7*2)+(6*1)+(5*7)+(4*2)+(3*1)+(2*0)+(1*8)=74
74 % 10 = 4
So 21721-08-4 is a valid CAS Registry Number.

21721-08-4SDS

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 mammea A/AD cycloD

1.2 Other means of identification

Product number -
Other names mammea A/AD cyclo D

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:21721-08-4 SDS

21721-08-4Downstream Products

21721-08-4Relevant articles and documents

4-Alkyl- and 4-phenylcoumarins from Mesua ferrea as promising multidrug resistant antibacterials

Verotta, Luisella,Lovaglio, Erminio,Vidari, Giovanni,Finzi, Paola Vita,Neri, Maria Grazia,Raimondi, Alessandro,Parapini, Silvia,Taramelli, Donatella,Riva, Antonella,Bombardelli, Ezio

, p. 2867 - 2879 (2007/10/03)

Supercritical CO2 selectively extracted a series of 4-alkyl and 4-phenyl 5,7-dihydroxycoumarins from Mesua ferrea blossoms. Chemical modifications of the isolated compounds allowed us to confirm the structures elucidated by spectroscopic means and to prepare new derivatives amenable to SAR studies and potential pharmaceutical development. Biological investigations towards the screening on a number of bacteria strains and Plasmodium falciparum, identified compounds 1-9 as weak antiprotozoal agents and potent antibacterials on resistant Gram-positive strains.

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