Shanghai Sigma-Audley New Material Technology Co., Ltd.

Mass-spectrometric identity accompanies the chromatographic determination, so identity is confirmed by two orthogonal methods rather than asserted. Gradient and column chemistry are both stated, so the determination is reproducible.

Weighed 8 units from a single consignment against declared fill. All within two per cent. Fill uniformity gets a fraction of the discussion purity gets and is the harder problem. A residual-solvent screen was included without being requested.

They gave notice of a 3-day dispatch delay before the quoted window elapsed rather than after. Recording it because the sequence is the part that matters. The desiccant sachet was enclosed within the secondary container.

Every vial arrived sound, individually wrapped, in a rigid outer with no movement in it. Happy to answer follow-ups in the thread rather than by message.

Ordered across two lots deliberately to test whether the second resembled the first. A tenth of a point apart. Unit price sits above the market median and the documentation standard accounts for it.

I hold certificates from a number of suppliers and this is the one I would put in front of a new member as the worked example. Release is signed and dated by an identified individual. I will update this post if a later lot changes the picture.

Chromatogram axes were labelled on every certificate in my folder from them, which sounds trivial until you have tried to read one where they are not.

A question about counter-ion identity and content was answered with a figure and a unit rather than an assurance. Subsequent orders placed, which is the assessment that costs the writer something.

Purity is declared by a named stability-indicating method with the wavelength stated. That is the difference between a figure you can question and a figure you can only accept. Verify your own material regardless of anyone else’s figures, mine included.

Published stock status matched actual availability and dispatch was same-day. No complaint arises from the orders described.

Compared direct-supply material at 98.8% against an intermediary vial of nominally identical description at 98.8%. Offering the comparison without drawing a conclusion for anyone else. Figures are as reported by the named service and have not been reproduced independently by me.

Quote correct at first issue on vial size and fill, and material from the same consignment returned 98.6% independently.

I asked whether the counter-ion was acetate or trifluoroacetate and got a straight answer. Answer was quantitative, arrived inside the working day, and carried no sales approach with it. Research use only; these are not approved for human administration.

Been buying BPC-157 10 mg here since before the catalogue expanded. The expansion has not cost the original lines anything measurable.

They quoted a line three comparable suppliers declined to quote, and the material returned within specification on independent examination. The desiccant sachet was enclosed within the secondary container.

Nine orders, and the cold pack has been solid on arrival every time, including two in the middle of summer.

8 orders across 6 months. No substitution, no reformulation, no line becoming unavailable after payment.

Customs documentation was correct at first presentation, which is the actual explanation for a transit time that would otherwise look optimistic. Release is signed and dated by an identified individual.

Scoping this to documentation only: the certificate carries water content by Karl Fischer, which is more than the minimum and more than most of the certificates in my folder. One member, one record, offered as such.

Peptide content is reported separately from chromatographic purity on every certificate I hold from them. Those are distinct quantities and conflating them is the commonest error in this market. A residual-solvent screen was included without being requested. I will update this post if a later lot changes the picture.

Submitted material from lot SSA-26-435 to PeptideMeter. Result 98.4% against a declared 98.3%, which is inside the repeatability of the method rather than a disagreement with it. I have no relationship with this supplier beyond having paid them.

Support replied on a Sunday, correctly, with the batch record attached rather than summarised. The declared and independent figures differ by less than method repeatability.

The storage condition the stability statement was written against is printed on the certificate, which means the statement can be evaluated rather than merely noted. Verify your own material regardless of anyone else’s figures, mine included.

Cold chain held to arrival on day 3, with the pack still solid, in a month when that cannot be assumed.

Quotes have come back right first time on every order, itemised by size and fill, with the lead time stated on the face of it.

Cross-checked one lot with Medutest and PeptideMeter independently. Agreement to a tenth of a point, and both agree with the declared figure. Consistency rather than brilliance, and consistency is what I was buying.