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2-Nitrophenyl-beta-D-galactopyranoside

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начало: Китай

Кас Но: 369-07-3

Спецификация: 99%наименьший

минимальный объем заказа: 1 /kg

снабженческая способность: 50 mt/month

опережающий период: OEM 7 дней, пятно 3 дня

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Quick Details
CAS No.:
369-07-3
Other Names:
2-Nitrophenyl-beta-D-galactopyranoside
MF:
C12H15NO8
EINECS No.:
206-716-1
Place of Origin:
Shandong, China
Type:
Pharmaceutical Intermediates
Purity:
97%.
Brand Name:
bosschemical
Model Number:
RTS: 369-07-3
Application:
organic intermediates
Appearance:
powder
Product name:
2-Nitrophenyl-beta-D-galactopyranoside
Description:
powder
CAS:
369-07-3
Molecular Formula:
C12H15NO8
EINECS:
206-716-1
Molecular weight:
301.25
Brands:
bosschemical
Assay:
97%.
usage:
Chemical reagent
Package:
Aluminum foil bag, vial bottle, fluorinated bottle
Packaging&Delivery
Selling Units:
Multiple of 1
Package size per batch:
1X1X1 cm
Gross weight per batch:
0.002 kg
Package Type:
```
Aluminum foil bag, vial bottle, fluorinated bottle
```
Lead Time:
Quantity(Grams) 1 - 1000 >1000
Est. Time(days) 10 To be negotiated

Property

CAS No.: 369-07-3 Formula: C12H15NO8 Molecular Weight: 301.24900

Description

ortho-Nitrophenyl-β-galactoside (ONPG) is a colorimetric and spectrophotometric substrate for detection of β-galactosidase activity. This compound is normally colorless. However, if β-galactosidase is present, it hydrolyzes the ONPG molecule into galactose and ortho-nitrophenol. The latter compound has a yellow color that can be used to check for enzyme activity by means of a colorimetric assay (at 420nm wavelength). β-Galactosidase is required for lactose utilization, so the intensity of the color produced can be used as a measure of the enzymatic rate.
Though ONPG mimics lactose and is hydrolyzed by β-galactosidase, it is unable to act as an inducer for the lac operon. Without another lactose analog that can act as an inducer, such as isopropyl β-D-1-thiogalactopyranoside (IPTG), β-galactosidase will not be transcribed and ONPG will not be hydrolyzed.

Basic Info

Chemical Name	2-Nitrophenyl-beta-D-galactopyranoside
Synonyms	2-Nitrophenyl β-D-galactopyranoside; 2-Nitrophenyl β-D-Galactopyranoside [Substrate; 2-Nitrophenyl beta-D-Galactopyranoside; 2-Nitrophenyl-β-D-Galactopyranoside; 2-Nitrophenyl β-D-galactopyranoside (ONPG);
CAS No.	369-07-3
Molecular Formula	C12H15NO8
Molecular Weight	301.24900
PSA	145.20000
LogP	-0.70330

Properties

Appearance & Physical State	White Crystalline Solid
Density	1.599 g/cm3
Boiling Point	572.4ºC at 760 mmHg
Melting Point	195ºC
Flash Point	300ºC
Refractive Index	1.647
Stability	Stable under normal temperatures and pressures.
Storage Condition	2-8ºC
Vapor Pressure	6.1E-14mmHg at 25°C