The product is packaged in bottomless glass bottles with an inserted fused cone. The micro-vials contain the product within an inner cone, while the bottomless outer glass cylinder, serves as a stand. This design is intentional and not a defect.
B4875
Nα-Benzoyl-DL-arginine 4-nitroanilide hydrochloride
trypsin substrate, chromogenic, elastase substrate, ≥98%, powder
Synonym(s):
Nα-Benzoyl-DL-arginine p-nitroanilide hydrochloride, BANI, BAPNA
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100 MG
€63.20
500 MG
€68.70
1 G
€111.00
5 G
€397.00
10 G
€604.00
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100 MG
€63.20
500 MG
€68.70
1 G
€111.00
5 G
€397.00
10 G
€604.00
About This Item
Empirical Formula (Hill Notation):
C19H22N6O4 · HCl
CAS Number:
Molecular Weight:
434.88
Beilstein:
4081878
EC Number:
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.32
Product Name
Nα-Benzoyl-DL-arginine 4-nitroanilide hydrochloride, ≥98%
Assay
≥98%
form
powder
color
, white to light yellow to light brown
solubility
DMSO: 50 mg/mL (colorless to dark green-yellow to dark brown-yellow)
storage temp.
−20°C
SMILES string
Cl[H].NC(=N)NCCCC(NC(=O)c1ccccc1)C(=O)Nc2ccc(cc2)[N+]([O-])=O
InChI
1S/C19H22N6O4.ClH/c20-19(21)22-12-4-7-16(24-17(26)13-5-2-1-3-6-13)18(27)23-14-8-10-15(11-9-14)25(28)29;/h1-3,5-6,8-11,16H,4,7,12H2,(H,23,27)(H,24,26)(H4,20,21,22);1H
InChI key
DEOKFPFLXFNAON-UHFFFAOYSA-N
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General description
Nα-Benzoyl-DL-arginine 4-nitroanilide hydrochloride (DL-BAPNA) is a chromogenic substrate for proteolytic enzymes such as trypsin, amidase, and balterobin. Hydrolysis of DL-BAPNA at the bond between the arginine and the p-nitroaniline moieties releases the chromophore p-nitroaniline, which can be detected by colorimetric analysis.
Application
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Substrates
A chromogenic trypsin substrate.
Storage Class Code
11 - 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
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Protocols
Objective: To standardize a procedure for the enzymatic assay of Aprotinin.
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Why do the bottoms of the vials/bottles of product B4875-100MG (Nα-Benzoyl-DL-arginine 4-nitroanilide hydrochloride) appear to have no bottom? How is the product contained within the vials despite this unusual appearance? Is this a packaging defect?
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