Will buying commonly used reagents directly from the official website of Biyun Tian be cheaper than agents?

It is recommended not only to calculate the unit price, from the perspective of supply chain stability: direct purchase on the official website reduces the intermediate link, the batch number may be fresher, but it is not cost-effective to reduce the shipping cost once; the agent is suitable for monthly billing, centralized invoicing and home delivery. Bulk commonly used reagents can continue to go to the agent, urgent use or replenishment to go to the official website. After arrival, focus on checking whether the BCA kit standard is complete, whether the Ripa/PMSF batch number and expiration date are clear, and a BSA standard curve and cell lysis test can be performed. This keeps costs under control and does not affect the experiment plan.

Not necessarily cheaper. The list price on the official website is sometimes the same as the agent's quote, but the agent may give lower discounts, free shipping or monthly settlement due to large quantities or long-term cooperation; the advantage of the official website is that there are often membership levels, full gifts, coupons. It is recommended to find the same item number of BCA kit, Ripa, and PMSF for the official website customer service and local sales quotes respectively, and compare the tax included price, cold chain shipping fee, and invoicing cycle. Benefits are generally visible to businesses after they sign up, but not necessarily publicly. For long-term use, you can ask the official website if there is a scientific research institute agreement price.

Shipping from Guangzhou usually takes 1-3 days with SF Express at room temperature/cold chain, but for urgent needs at the end of the month, it is necessary to confirm the cut-off time and whether to ship separately from the warehouse with customer service in advance. RIPA and PMSF are mostly refrigerated/frozen among these three reagents, while BCA is usually at room temperature and may be shipped in separate packages, resulting in a delay of half a day in delivery time. It is recommended to make a note when placing an order stating 'to arrive before the end of the month, please send via SF Express/cold chain', and track the tracking number after payment. Most invoices can be shipped with the goods or separately, and can be checked in the system. However, invoices may be queued at the end of the month, so it is best to confirm with customer service in advance.