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B4651

Sigma-Aldrich

3-Bromo-3-methyl-2-(2-nitrophenylthio)-3H-indole

≥85%

Synonym(s):

2-(2-Nitrophenylsulfenyl)-3-methyl-3-bromoindolenine, 3-Bromo-3-methyl-2-(2-nitrophenylmercapto)-3H-indole, BNPS-skatol

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About This Item

Empirical Formula (Hill Notation):
C15H11BrN2O2S
CAS Number:
Molecular Weight:
363.23
Beilstein:
1491457
EC Number:
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:

Assay

≥85%

storage temp.

−20°C

SMILES string

CC1(Br)C(Sc2ccccc2[N+]([O-])=O)=Nc3ccccc13

InChI

1S/C15H11BrN2O2S/c1-15(16)10-6-2-3-7-11(10)17-14(15)21-13-9-5-4-8-12(13)18(19)20/h2-9H,1H3

InChI key

BXTVQNYQYUTQAZ-UHFFFAOYSA-N

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Application

Peptide cleavage reagent specific for the carboxyl side of tryptophan residues.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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The core domain of hirudin from the leech Hirudinaria manillensis. Chemical modification of a tryptophan-containing synthetic peptide analog.
F De Antoni et al.
Advances in experimental medicine and biology, 398, 627-633 (1996-01-01)
D L Crimmins et al.
Analytical biochemistry, 187(1), 27-38 (1990-05-15)
Proteins immobilized to glass-fiber supports and polyvinylidenedifluoride membranes are cleaved in situ with a tryptophan residue-specific reagent, 2-(2'-nitrophenylsulfenyl)-3-methyl-3'-bromoindolenine. Protein fragments can be eluted from polyvinylidenedifluoride membranes after in situ digestion and electrophoresed and electroblotted to new polyvinylidenedifluoride membranes for subsequent
V Rahali et al.
Die Nahrung, 44(2), 89-95 (2000-05-05)
Bovine beta-Lactoglobulin (BLG) was cleaved by BNPS-skatole (2-(2'-nitrophenylsulfenyl)-3-methyl-3'-bromoindolenine), trypsin, or pepsin in 40% ethanol before emulsification with hexadecane in order to characterize the peptides active at the interfaces. The total digests and the different phases obtained after emulsification were analyzed
J Schaller et al.
Protein sequences & data analysis, 4(2), 69-74 (1991-08-01)
The complete amino acid sequence of equine miniplasminogen (Mr 37,132, 338 residues) was determined with the aid of fragments obtained by cleavage with 2-(2-nitrophenylsulfenyl)-3-methyl-3'-bromoindolenine, cyanogen bromide or clostripain. The fragments were aligned with overlapping sequences. Sequence comparison with other species
M M Vestling et al.
Rapid communications in mass spectrometry : RCM, 8(9), 786-790 (1994-09-01)
Mass spectrometry has been used to define the reaction of BNPS-skatole (3-bromo-3-methyl-2-(o-nitrophenylsulfenyl)indolenine) with selected proteins and peptides, confirming the cleavage of the protein chain at tryptophan residues, characterizing the products, and identifying the side reactions. A short procedure for carrying

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