Deoxynucleotide (dNTP) solution mix. The merchandise in question is a dNTP solution mix that will be used for in-vitro scientific research purposes, specifically those that require a polymerase chain reaction (PCR). The function of dNTPs in PCR is to expand the growing DNA strand with the help of Taq DNA polymerase. The dNTP solution mix will be imported in 250, 500 and 1000 microliters volume per tube. It is said to contain dATP (CAS 1927-31-7), dCTP (CAS 102783-51-7), dGTP (CAS 93919-41-6), dTTP (CAS 18423-43-3), and water.
[1] Please importantly note that only the relevant portion of the related is displayed above. You may refer to the said customs ruling for the entire ruling explanation.
[1]. https://rulings.cbp.gov/ruling/N315801