Skip to Content
Merck
CN

50572

2,2′-(1,4-Phenylene)bis-1H-benzimidazole-4,6-disulfonic acid

analytical standard

Synonym(s):

Bisdisulizole free acid

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C20H14N4O12S4
CAS Number:
170864-82-1
Molecular Weight:
630.60
UNSPSC Code:
77101502
NACRES:
NA.24
Beilstein/REAXYS Number:
15808914

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI

1S/C20H14N4O12S4/c25-37(26,27)11-5-13-17(15(7-11)39(31,32)33)23-19(21-13)9-1-2-10(4-3-9)20-22-14-6-12(38(28,29)30)8-16(18(14)24-20)40(34,35)36/h1-8H,(H,21,23)(H,22,24)(H,25,26,27)(H,28,29,30)(H,31,32,33)(H,34,35,36)

SMILES string

OS(=O)(=O)c1cc(c2[nH]c(nc2c1)-c3ccc(cc3)-c4nc5cc(cc(c5[nH]4)S(O)(=O)=O)S(O)(=O)=O)S(O)(=O)=O

InChI key

LYLOSUMZZKYEDT-UHFFFAOYSA-N

grade

analytical standard

assay

≥98.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

impurities

≤20% water

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

format

neat

Quality Level

100

General description

2,2′-(1,4-Phenylene)bis-1H-benzimidazole-4,6-disulfonic acid is employed as a UV filter in cosmetic products according to the current EU legislation (EC, 2009).

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Analysis Note

contains free H2SO4

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCD4589
BCBW7034
BCBQ7426V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Current problems in the use of organic UV filters to protect skin from excessive sun exposure
Klimova Z, et al.
Acta Chimica Slovaca, 6(1), 82-88 (2013)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service