text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

CAS RN: 842-18-2 | Product Number: N0030

Dipotassium 2-Naphthol-6,8-disulfonate

Purity: >98.0%(T)(HPLC)
  • Dipotassium 7-Hydroxy-1,3-naphthalenedisulfonate
  • 2-Naphthol-6,8-disulfonic Acid Dipotassium Salt
  • G Acid Dipotassium Salt
  • 7-Hydroxy-1,3-naphthalenedisulfonic Acid Dipotassium Salt
26   1  

* Please contact our distributors or TCI to order our products. The above prices do not include freight cost, customs, and other charges to the destination.
* The storage conditions are subject to change without notice.


Previously this product had been labeled as a hydrate form both in product name and molecular formula. The hydrate form had no exclusive CAS RN and used to share the same CAS RN as the anhydrous form.
To avoid any misleading information and since moisture in product is considered as an impurity, we have decided to remove the term 'Hydrate' from product name and 'xH2O' from the molecular formula for such products.
Please use it at ease since there is no difference in product quality, even if you see the previous indications on a part of label.

Product Number N0030
Purity / Analysis Method >98.0%(T)(HPLC)
Molecular Formula / Molecular Weight C__1__0H__6K__2O__7S__2 = 380.47 
Physical State (20 deg.C) Solid
CAS RN 842-18-2
Reaxys Registry Number 4079893
PubChem Substance ID 87573441
MDL Number


Appearance White to Light gray to Light yellow powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(Ion exchange titration) min. 98.0 %(calcd.on anh.substance)
Water max. 15.0 %
Properties (reference)
Related Laws:
Transport Information:
H.S.code* 2908.99-000
*This code is applied to the products when TCI exports from Japan and not for import in your country.
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