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18670-98-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18670-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,6,7 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18670-98:
(7*1)+(6*8)+(5*6)+(4*7)+(3*0)+(2*9)+(1*8)=139
139 % 10 = 9
So 18670-98-9 is a valid CAS Registry Number.

18670-98-9SDS

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 benzyl 2-[2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoylamino]propanoate

1.2 Other means of identification

Product number -
Other names 1-tert-butyloxycarbonylindole-2-carboxaldehyde

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:18670-98-9 SDS

18670-98-9Relevant articles and documents

Functionalized oligoanthranilamides: Modular and conformationally controlled scaffolds

Hamuro, Yoshitomo,Hamilton, Andrew D

, p. 2355 - 2363 (2001)

This paper describes the use of functionalize oligoanthranilamides as conformationally controlle scaffolds for molecular recognition. Oligomers of anthranilamides are stabilize by the formation of intramolecular six-membere hydrogen bonds in a linear strand conformation. Onto alternate anthranilic aci units, we have attached di- or tripeptide recognition units with the potential to form intramolecular hydrogen bonds to an intercalated peptide strand . Using 1H NMR dilution experiments in CDCl3, we have observe chemical shift changes that are consistent with the formation of an extended hydrogen bondes sheet dimer. We also demonstrate that the bis-alanine functionalize strands are able to form discrete hydrogen bonded complexes with dipeptide substrates an to bind hexanoyl alanylalanine selectively over its benzyl ester. In the presence of excess hydrogen bon donors and acceptors, the oligoanthranilamide strand retained its linear conformation, pointing to the potential of this modular design as a useful and stable scaffold for molecular recognition studies. Copyright

Rapid and column-free syntheses of acyl fluorides and peptides usingex situgenerated thionyl fluoride

Lee, Cayo,Sammis, Glenn M.,Thomson, Brodie J.

, p. 188 - 194 (2021/12/31)

Thionyl fluoride (SOF2) was first isolated in 1896, but there have been less than 10 subsequent reports of its use as a reagent for organic synthesis. This is partly due to a lack of facile, lab-scale methods for its generation. Herein we report a novel protocol for theex situgeneration of SOF2and subsequent demonstration of its ability to access both aliphatic and aromatic acyl fluorides in 55-98% isolated yields under mild conditions and short reaction times. We further demonstrate its aptitude in amino acid couplings, with a one-pot, column-free strategy that affords the corresponding dipeptides in 65-97% isolated yields with minimal to no epimerization. The broad scope allows for a wide range of protecting groups and both natural and unnatural amino acids. Finally, we demonstrated that this new method can be used in sequential liquid phase peptide synthesis (LPPS) to afford tri-, tetra-, penta-, and decapeptides in 14-88% yields without the need for column chromatography. We also demonstrated that this new method is amenable to solid phase peptide synthesis (SPPS), affording di- and pentapeptides in 80-98% yields.

One-pot mechanosynthesis of aromatic amides and dipeptides from carboxylic acids and amines

?trukil, Vjekoslav,Bartolec, Boris,Portada, Tomislav,Dilovi?, Ivica,Halasz, Ivan,Margeti?, Davor

supporting information, p. 12100 - 12102 (2013/01/16)

Environmentally friendly one-pot synthesis of amides, bis-amides and dipeptides by mechanochemical carbodiimide-mediated coupling of carboxylic acids and amines is described; high reaction yields and simple aqueous work-up allow for the clean, practical and fast preparation of a variety of compounds containing the amide bond from readily accessible reagents.

Design, synthesis and inhibition activity of novel cyclic peptides against protein tyrosine phosphatase A from Mycobacterium tuberculosis

Chandra, Koushik,Dutta, Debajyoti,Das, Amit K.,Basak, Amit

supporting information; scheme or table, p. 8365 - 8373 (2011/02/25)

Mycobacterium tuberculosis, the causative agent for tuberculosis has employed several signalling molecules to sense the host cellular environment and act accordingly. For example, protein tyrosine phosphatase A (MPtpA) of M. tuberculosis, a signalling pro

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