1807539-04-3 Usage
Description
Fluorescein-PEG3-Amine is a fluorescein dye with excitation/emmission maximum 494/517 nm containing a free amine group, which can be reactive with cabroxylic acid, activated NHS ester, carbonyl (ketone, aldehyde) etc. The hydophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.
Check Digit Verification of cas no
The CAS Registry Mumber 1807539-04-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,7,5,3 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1807539-04:
(9*1)+(8*8)+(7*0)+(6*7)+(5*5)+(4*3)+(3*9)+(2*0)+(1*4)=183
183 % 10 = 3
So 1807539-04-3 is a valid CAS Registry Number.