O1409

2-Nitrophenyl-β-D-galactopyranoside

CAS number 369-07-3
Molecular weight C12H15NO8 = 301.3
Assay > 90 %

ONPG is a colorimetric and spectrophotometric substrate for detection of ß-galactosidase activity. ONPG is cleaved by ß-galactosidase via hydrolysis at the ß-1-4-glycosidic bond be-tween 2-nitrophenol and galactose. The released 2-nitro-p-henol is measured spectrophotometrically at 405 nm. The absorbance intensity at this wave-length is directly related to the specific activity.

Storage condition

  • Store dry at 2-8 °C
  • Soluble in water, DMSO and DMF
  • Protect from light and moisture

Hazard statements

  • H335 May cause respiratory irritation

Precautionary statements

  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray
  • P304 IF INHALED:
  • P340 Remove victim to fresh air and keep at rest in a position comfortable for breathing
Filename Language File size
O1409_GB.pdf English 139 KB
O1409_NL.pdf Nederlands 143 KB
O1409_DE.pdf Deutsch 147 KB
O1409_FR.pdf Français 143 KB
O1409_ES.pdf Español 144 KB
O1409_IT.pdf Italiano 142 KB
Filename Batch number Expiry date Language
O1409_011220_GB.pdf 011220 12-2019 English
Contact us if your Certificate of Analysis is not listed here.
  • O1409.0005
  • 5 g
  • € 33.30
  • Order
  • O1409.0025
  • 25 g
  • € 127.30
  • Order
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