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Sigma-Aldrich

2-Chlorotrityl chloride

≥97.0% (AT)

Synonym(s):

Chloro(2-chlorophenyl)diphenylmethane

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About This Item

Empirical Formula (Hill Notation):
C19H14Cl2
CAS Number:
Molecular Weight:
313.22
Beilstein/REAXYS Number:
1983914
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

≥97.0% (AT)

form

solid

mp

130-135 °C

SMILES string

Clc1ccccc1C(Cl)(c2ccccc2)c3ccccc3

InChI

1S/C19H14Cl2/c20-18-14-8-7-13-17(18)19(21,15-9-3-1-4-10-15)16-11-5-2-6-12-16/h1-14H

InChI key

JFLSOKIMYBSASW-UHFFFAOYSA-N

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Application

2-Chlorotrityl chloride was used to obtain protected peptide fragments that can be applied to the preparation of head-to-tail cyclopeptides or to condensation of peptidic fragments.

Other Notes

Protecting group reagent for carboxylic acids forming esters which are cleaved mildly.

pictograms

CorrosionExclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jie Luo et al.
Journal of the American Society for Mass Spectrometry, 30(9), 1643-1653 (2019-06-07)
Chemical cross-linking combined with mass spectrometry (CL-MS) is a powerful method for characterizing the architecture of protein assemblies and for mapping protein-protein interactions. Despite its proven utility, confident identification of cross-linked peptides remains a formidable challenge, especially when the peptides
Shinichiro F Ichise et al.
Acta biomaterialia, 94, 361-371 (2019-06-15)
Collagen is the most abundant protein in the animal kingdom and has a unique triple-helical structure. It not only provides mechanical strength to tissues, but also performs specific biological functions as a multifaceted signaling molecule. Animal-derived collagen is therefore widely
K Barlos et al.
International journal of peptide and protein research, 37(6), 513-520 (1991-06-01)
The esterification of 2-chlorotrityl chloride resin with Fmoc-amino acids in the presence of DIEA is studied under various conditions. High esterification yields are obtained using 0.6 equiv. Fmoc-amino acid/mmol resin in DCM or DCE, in 25 min, at room temperature.
Sogol Kangarlou et al.
Pharmaceutical biology, 55(1), 277-285 (2016-12-13)
Curcumin, a naturally occurring polyphenol, has been extensively studied for its broad-spectrum anticancer effects. The potential benefits are, however, limited due to its poor water solubility and rapid degradation which result in low bioavailability on administration. This study encapsulates curcumin
Elżbieta Kamysz et al.
Journal of peptide science : an official publication of the European Peptide Society, 18(9), 560-566 (2012-07-13)
LL37 and histatin 5 are antimicrobial peptides. LL37 exhibits killing activity against a broad spectrum of pathogens, whereas histatin 5 is primarily an antifungal agent. Head-to-tail cyclization of histatin 5 did not affect its antimicrobial and haemolytic activity. The cyclic

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