how much of what we believe about Janoshik actually comes from reship threads. I would rather ask a basic question now than get this wrong quietly for two months. A…
Medutest
Every GLP Research Hub submission tagged to Medutest, ranked by score. Discussed in 2 communities.
Something I keep coming back to: the testing thing finally clicked for me and I want to write it down. Independent testing is worth more than a supplied certificate for…
Something I keep coming back to: testing is the most under-discussed thing on this board. Independent testing is worth more than a supplied certificate for one…
Homopeptide BPC — Medutest came back 98.6% against a claimed 98.0%. One vial, one service, one member paying, which is the only kind of result this board should treat…
Sigma-Aldrich — certified reference materials
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standardsAsking properly rather than in a comment on somebody else’s thread: how do you actually verify Janoshik. On inter-lab disagreement, which generates more heat here than…
Thinking out loud about this: the Janoshik advice in here is 3 years out of date. 3 years. Those are measured, not estimated, and not rounded up in my favour. The thing…
reading Janoshik threads from 2024 and half of it aged badly. Change my mind, genuinely — I have no stake in being right about this. Risynth Bio came up in three…
reading below spec threads from 2024 and half of it aged badly. Not a hot take, just something I have not seen said plainly here. CPC BPC, batch matched the paperwork,…
the batch advice in here is 3 years out of date. It is the sort of thing everyone half-believes and nobody writes down. The relevant figures are 3 years, and they come…
Question in the title, detail here: do test results actually matter or is it forum lore at this point. Have now spent more on testing than on some of the orders. No…
The title is the whole question — help me understand order records, I have read the wiki twice — but here is why I am asking. What a batch record should carry: the lot…
Thinking out loud about this: we are measuring vendor at the wrong time and calling it noise. What "documentation" actually means, since people use it to mean four…
Slightly embarrassed to be asking this, but: Janoshik — what am I missing here. A series across separate lots estimates a process. Repeat tests on one lot estimate the…
Putting this at the top of the board where it belongs: reship is not what most of this community thinks it is. Lead time and minimum quantity are the two facts people…
The title is the argument: order records — 5 things I got wrong before I got it right. Here is the rest of it. What a batch record should carry: the lot identifier, the…
Janoshik Analytical — independent HPLC & mass spec
Send the vial, get the number. Third-party purity and identity testing, results published to you regardless of what they say.
Test a vialSponsoredGL Biochem (Shanghai) Ltd. — the synthesis house
Est. 1998. ISO 9001 and cGMP, 1,500+ staff, 200+ patents. There is a fair chance the vial you are about to send for testing started here. Batch-specific COA as standard.
glbiochem.netThe claim in the title is exactly the claim I am making: split one vial across VendorInvestigate and PeptideMeter — 99.1% and 96.8%. Nothing implied beyond it. Numbers,…
how much of what we believe about purity actually comes from PeptideMeter threads — that is what I am asking, and I have already read the wiki twice. First result I…
how do you actually verify vendor, and I want the answer with the reasoning attached rather than just the conclusion. Sent the same compound from QST and SGN to…
The one-line version is the title: testing is not what most of this community thinks it is. The rest is why. The thing that decided it for me was that QYB answered a…
the below spec advice in here is 2 years out of date. I have gone back and forth on this for months. The numbers the title promised, since a headline without them is…
Janoshik is not what most of this community thinks it is. If you already knew this, the post is not for you and you can scroll on. FGP BPC, batch matched the paperwork,…
three years of Janoshik threads, summarised so you do not have to read them — a position I have arrived at slowly and would like tested. Tested three lots over a year…
Thinking out loud about this: test results — 20 things I got wrong before I got it right. First result I ever posted here got asked for the batch number and the claim.…
why does nobody talk about reship — that is what I am asking, and I have already read the wiki twice. The wider-market rows in the directory carry a band and a report…
help me understand PeptideMeter, I have read the wiki twice — that is what I am asking, and I have already read the wiki twice. Date of analysis anchors the result to a…