1. What is pure bilirubin?

Pure bilirubin is the percent of bilirubin in this product over 99% or above. You can use the HPLC or UV to test it if the supplier indicate its pure bilirubin is 99% HPLC. Whether it is a pure bilirubin will helps you when you purchase bilirubin. The registered CAS NO. of this product is 635-65-4. And the chemical formular of it is C₃₃H₃₆N₄O₆. The appearance of this product will be a orange or red brown cystalize powder. Here is a product picture of it:



2. Who can supply pure bilirubin in China?

ANHUI BRIGHT-CHEM BIOENGENEERING CO.,LTD is a pure bilirubin manufacturer and located in the north of Anhui Pearl - Huaibei City. It can supply 90% or 99% Bilirubin HPLC. It even has the GMP certification of it. And the product appearance of it is orange or red brown cystalize powder. It has done the chemical business several years and has the exporting ability.