Certificate of Analysis

Product Name o-CRESOLPHTHALEIN COMPLEXONE
CAS Number 2411-89-4
Molecular Formula C32H32N2O12
Catalogue No. AL00570
Molecular Weight 636.60 g/mol
Batch Number AL-2026-AL00570
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Description Beige colored powder Beige colored powder
Absorption maxima in 0.1M NaOH 577 – 580 nm 577 nm
Specific Absorptivity at lambda max Min. 750 761
Water (by KF) <10% 8.66%
Suitability as metal indicator Passes test Passes test
Result: The above product complies with LR grade

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
ISO Certifications