Supplier: Thermo Fisher Scientific

Manganese(II) 2-ethylhexanoate 40% (w/w) in mineral spirits (6% Mn)

Supplier: Thermo Fisher Scientific

Sodium deuteroxide 40% (w/w) in D₂O for NMR spectroscopy (D₂O 99+ atom%D)

Supplier: Thermo Fisher Scientific

2-Mercaptopyridine-N-oxide sodium salt 40% in aqueous solution

Supplier: VWR Chemicals

Orthoboric acid 40 g/l in aqueous solution for Kjeldahl determinations, with indicator

Supplier: Avantor

Petroleum spirit, 40…60 °C, BAKER, Laboratory Reagent, J.T.Baker®

Supplier: VWR Chemicals

Petroleum spirit, 40…60 °C, PESTINORM® for pesticide residue analysis

Supplier: VWR Chemicals

Petroleum spirit, 30…40 °C, AnalaR NORMAPUR® analytical reagent

Supplier: VWR Chemicals

Petroleum spirit, 40…60 °C, PESTINORM® for capillary GC analysis

Supplier: VWR Chemicals

D-(+)-Glucose 40% (w/v) in aqueous solution, Ultra Pure Grade for biochemistry

Supplier: Merck

Organic Standard, F.A.M.E. Mix GLC-40, Ampoule of 100 mg

Supplier: Merck

Petroleum spirit, 40…60 °C, SupraSolv® for GC-ECD/FID, Supelco®

Supplier: Thermo Fisher Scientific

Samarium 99.9% (trace metals basis) 20-40 mesh

Supplier: Thermo Fisher Scientific

Zinc 99.999% (trace metals basis), powder 40 mesh

Supplier: Merck

Silica gel, spherical 40-75 μm particle size, Supelco®

Supplier: US Biological

Anti-Heat Shock Protein 40 Rabbit Polyclonal Antibody

Supplier: PanReac AppliChem

Acrylamide : Bisacrylamide (37.5:1) 40% in aqueous solution, 4x crystallised

Supplier: TCI

Dihydroxybis(ammonium lactato)titanium(IV) ∼40% in 2-propanol/water

Supplier: Thermo Fisher Scientific

Sodium borohydride 12% in sodium hydroxide solution 40%, AcroSeal®

Supplier: Whatman products (Cytiva)

Whatman Grade 40 high-purity filters from Cytiva's business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.

Supplier: Thermo Fisher Scientific

Copper ≥99.5% (metals basis), powder -40/+100 mesh

Supplier: US Biological

Anti-Ring Finger Protein 40 Rabbit Polyclonal Antibody

Supplier: NABERTHERM

Ceramic ribbed plate, with W×D×H: 490×310×12,7 mm, L 40 and LT 40, Nabertherm

Supplier: Honeywell Chemicals

Ammonium fluoride 40% in aqueous solution

Supplier: TCI

2-Mercaptopyridine-N-oxide sodium salt 40% ∼3.3 mol/L in water

Supplier: Thermo Fisher Scientific

Charcoal activated, NORIT® GAC 1240 12-40 mesh

Supplier: B. Braun

Omnifix® syringes are single-use insulin syringes for U-40.

Supplier: US Biological

Anti-THBD Mouse Monoclonal Antibody [clone: QBEND/40]

Supplier: US Biological

Anti-ACTB Mouse Monoclonal Antibody [clone: AC-40]

Supplier: VWR Chemicals

Silica gel 60, irregular 40 - 63 µm for flash chromatography

Supplier: Bioss

DnaJ-like proteins interact with HSP 70 molecular chaperones and function to facilitate protein folding and mitochondrial protein import. HSP 40-4, also known as HDJ2, is the human DnaJ homolog that functions as a co-chaperone with a cysteine-rich zinc finger domain. The cellular redox enzyme thioredoxin interacts with HSP 40-4, and oxidation and reduction reversibly regulate HSP 40-4 function in response to the changing redox states of the cell. The zinc finger domain of HSP 40-4 may act as a redox sensor of chaperone-mediated protein-folding machinery, since HSP 40-4 inactivation leads to the oxidation of cysteine thiols and a simultaneous release of coordinated zinc. Loss of the HSP 40-4 protein may be linked to severe defects in spermatogenesis that involve aberrant androgen signaling.