CERTIFICATE OF QUALITY

Product:

TMB

3,3'5,5'-Tetramethylbenzidine

Grade:

Biochemika Grade

Lot:

OG2203A

Code:

180090

CAS NO.:

[54827-17-7]

Mol. Formula:

C₁₆H₂₀N₂

Mol. Weight:

240.35

Packing:

500 g / Bottle

Purity(GC)

≥99.0%

99.7%

Melting point

168.0~171.0℃

169.7℃

Solubility(DMSO, 0.3g/1ml)

Clear,Colorless solution

Complies

Loss on drying

≤0.5%

0.2%

Sulfate

≤0.006%

Complies

Heavy Metals(as Pb)

≤5ppm

3ppm

Chromatography

Single Spot

Complies

Appearance

White or light yellow crystal

White crystal