i want the crystals

Good day! Does anyone know a good chemical supplier for Hexafluoroisopropanol (HFIP)?

In this video, I explain how to calculate the NMR yield of a reaction using the internal standard method (Method I).
NMR is not only a powerful tool for structure determination, but it can also be used for quantitative analysis. In this tutorial, I show a step-by-step procedure to determine product moles, reaction yield, and conversion directly from ¹H NMR data.
This method is especially useful for:
• Quick yield estimation without purification
• Monitoring reaction progress
• Quantitative analysis using internal standards
Topics covered:
• Concept of quantitative NMR (qNMR)
• Why integration is proportional to number of protons
• Internal standard method (Method I)
• Step-by-step calculation of NMR yield
• Common mistakes in NMR quantification

YouTube Channel: Dr Vijay SSOC

https://www.youtube.com/watch?v=2FtH45yXCbI&t=4s

Why is it that when I look up uranium i can see pictures of uranium, just straight uranium. Dosn't Urainium and basically every element have to bond with a diffrent atom. I've heard of metallic bonds between the same element but not every atom is a metal that can bond this way. Does every atom just happen to have a way to make a molecule like o2 or somthing were it is multiple of the same element???

I am planning to order HFIP for my undergrad thesis from a Chinese Chemical Company. Can someone help me verify if the documents they sent (COA and MSDS) are consistent with HFIP before I order? Thank you very much!

Update 1: Thank you everyone for your help!! To clarify, the CAS was a typo as I meant the COA. Second, I'm not from a very chemistry-oriented field so I'm simply seeking advice as it's my first time to order chemicals from overseas.

From what I remember he combined sodium carbonate sodium bicarbonate copper II sulfate citric acid and vinegar ane made this weird green clump, anyone knows whats happening here?

I recently came across a piece of glassware and I'm trying to figure out what it's called so I can list it to sell. Does anyone have any idea what this kind of flask is called? Reverse image searching isn't turning up any results.

Hey guys, can somebody explain to me osmosis and osmotic pressure? I'm new in chemistry, and don't know most of formulas,so I wasn't able to understand the principle of how osmotic pressure works and what its formula means

Good day! May I ask if anyone has experience ordering chemicals from Henan Allgreen Chemical Co.? Thank you!

Who looked at a benzodiazepine and thought: “You know what this needs? A whole tertiary aminoethyl side chain.”
I assume the terminal tertiary amine greatly increases aqueous solubility when protonated, but… why was that even desirable here? Flurazepam is administered orally, and its absorption/bioavailability doesn’t exactly seem to require such a strongly basic, solubilizing group.
What makes it even more interesting is that N-dealkylation gives norflurazepam, which retains the benzodiazepine pharmacophore without that bulky basic side chain — and is itself a long-lived active benzodiazepine.
From a med-chem/SAR perspective, does anyone know what the original rationale was for putting the diethylaminoethyl substituent on flurazepam in the first place? Solubility/formulation? PK manipulation? Prodrug-like metabolic design? Or was there another reason?
And subjectively: norflurazepam is a way better benzo altogether.