Skip to Content
Merck
CN
All Photos(1)

Documents

PHR1301

Supelco

Ensulizole(2-Phenylbenzimidazole 5-sulfonic acid)

Pharmaceutical Secondary Standard; Certified Reference Material

Sign Into View Organizational & Contract Pricing
All Photos(1)
Synonym(s):
2-Phenyl-5-benzimidazolesulfonic acid, Ensulizole
Empirical Formula (Hill Notation):
C13H10N2O3S
CAS Number:
27503-81-7
Molecular Weight:
274.30
MDL number:
MFCD00053007
UNSPSC Code:
41116107
PubChem Substance ID:
329823289
NACRES:
NA.24

grade

certified reference material
pharmaceutical secondary standard

Quality Level

300

Agency

traceable to USP 1530809

API family

ensulizole

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

>300 °C (lit.)

application(s)

environmental
pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

OS(=O)(=O)c1ccc2[nH]c(nc2c1)-c3ccccc3

InChI

1S/C13H10N2O3S/c16-19(17,18)10-6-7-11-12(8-10)15-13(14-11)9-4-2-1-3-5-9/h1-8H,(H,14,15)(H,16,17,18)

InChI key

UVCJGUGAGLDPAA-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

Ensulizole(2-Phenylbenzimidazole 5-sulfonic acid) may be used as a pharmaceutical reference standard for the determination of the analyte in sunscreen formulations by high performance liquid chromatography (HPLC) technique.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAC0273 in the slot below. This is an example certificate only and may not be the lot that you receive.

related product

Product No.
Description
Pricing

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Ashley R Heurung et al.
Dermatitis : contact, atopic, occupational, drug, 25(6), 289-326 (2014-11-11)
Sunscreen is a key component in the preventive measures recommended by dermatologists and public health campaigns aimed at reducing sunburn, early skin aging, and skin cancer. To maximize compliance, adverse reactions to sunscreens should be minimized. Although inactive ingredients cause
J Shokri et al.
Drug research, 63(11), 591-596 (2013-07-12)
There is a serious concern about the topical and systemic absorption of organic ultraviolet filters in sunscreen formulations and subsequent phototoxic and photo allergic reactions. Ideally, a sunscreen should localize in the surface of stratum corneum and create a barrier

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