2-Phenylbenzimidazole-5-sulfonic acid Featured Image

2-Phenylbenzimidazole-5-sulfonic acid

Short Description:

Chemical Name: 2-Phenylbenzimidazole-5-sulfonic acid

Alias: Ultraviolet absorbent UV-T; 2-phenyl-1H-benzimidazole-6-sulfonate; PBSA

CAS No.: 27503-81-7

EINECS No.: 248-502-0

Molecular Formula: C₁₃H₁₀N₂O₃S

Molecular Weight: 274.3

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2-Phenylbenzimidazole-5-sulfonic-acid_01

Testing Items	Specifications	Testing Methods
Appearance	White to off-white powder	Visual
Identification(UV)	Conforms	UV USP<197U>
Identification(IR)	Conforms	UV USP<197K>
Assay(Loss on Drying)	98.0% ~ 102.0%	USP Monograph:Ensulizole
UV Specific Extinction(E1%, 1cm at 302±2nm)	920 ~ 1000	Spectrophotometric
Loss on Drying	Not more than 2.0%	USP Monograph:Ensulizole

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2-Phenylbenzimidazole-5-sulfonic acid (2)

2-Phenylbenzimidazole-5-sulfonic acid (3)

2-Phenylbenzimidazole-5-sulfonic acid (4)

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