Prism 4X RT-qPCR Mastermix uses a proprietary combination of enzymes and buffer chemistry for efficient extension and early Ct in single and multiplex qPCR. It can be used to quantify mRNA, total RNA, and viral RNA targets. The combination of inhibitor-tolerant enzymes and RNase inhibitor makes this mix ideal for challenging applications, such as lightly processed samples and direct-sample-PCR applications