text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

CAS RN: 7143-21-7 | Product Number: N0037

β-Naphthol Violet

  • 1-(4-Nitrophenylazo)-2-naphthol-3,6-disulfonic Acid Disodium Salt
1   12  

*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).

Product Number N0037
Molecular Formula / Molecular Weight C__1__6H__9N__3Na__2O__9S__2 = 497.36  
Physical State (20 deg.C) Solid
CAS RN 7143-21-7
PubChem Substance ID 87573447
MDL Number


Appearance Dark red to Brown powder to crystal
Lambda max. 508.0 to 511.0nm(H2O)
Absorbance(E1%1cm) min. 520(5mg/L, H2O, 508.0 to 511.0nm)
Drying loss max. 10.0 %
Sensitiveness to pass test
Properties (reference)
Maximum Absorption Wavelength 510(H2O) nm
Related Laws:
EC Number 230-443-7
Transport Information:
HS Number 2927000090
PubMed Literature

Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.

The requested SDS is not available.

Please Contact Us for more information.

C of A & Other Certificates
Please enter Lot Number Incorrect Lot Number is entered
Analytical Charts
Please enter Lot Number Incorrect Lot Number is entered

The requested analytical chart is not available. Sorry for the inconvenience.

Other Documents