Certificate of Analysis

Product Name 5,5-DITHIO BIS 99% (2-NITRO BENZOIC ACID) Extra Pure (DTNB)
CAS Number 69-78-3
Molecular Formula C14H8N2O8S2
Catalogue No. AL2251B
Molecular Weight 396.35 g/mol
Batch Number AL-2026-AL2251B
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Assay ≥ 99% 99.5%
Moisture Content ≤ 0.5% 0.3%
Residue on Ignition ≤ 0.1% 0.05%
Related Substances None detected None detected
Result: The above product is expected to comply with Extra Pure grade specification.

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
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