Spectroscopy Standards
![eMolecules 6943-17-5 | 6-nitro-1,4-dihydroquinazolin-4-one | Pharmablock | MFCD08460966 | 191.146 | C8H5N3O3 | 97.000 | [O-][N+](=O)c1ccc2[nH]cnc(=O)c2c1 | 25mg | 603243515](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502515433.JPG-250.jpg)
eMolecules 6943-17-5 | 6-nitro-1,4-dihydroquinazolin-4-one | Pharmablock | MFCD08460966 | 191.146 | C8H5N3O3 | 97.000 | [O-][N+](=O)c1ccc2[nH]cnc(=O)c2c1 | 25mg | 603243515
6-nitro-1,4-dihydroquinazolin-4-one | Pharmablock | 6943-17-5 | MFCD08460966 | 191.146 | C8H5N3O3 | 97.000 | [O-][N+](=O)c1ccc2[nH]cnc(=O)c2c1 | 25mg | 603243515
Perkin Elmer US LLC Alternate Interferents B, 5% HNO3/trace Tartaric Acid/trace HF, 125 mL
Concentration of Element includes: Matrix Concentration 5% HNO3 100 µg/mL: Cd, Ni, Zn 60 µg/mL: Sb 50 µg/mL: Ba, Be, Co, Cr, Cu, Mn, V 20 µg/mL: Ag 10 µg/mL: As, Tl 5 µg/mL: Pb, Se
Perkin Elmer US LLC Chromium (Cr) Pure Standard, 1,000 µg/mL, 2% HNO3, 500 mL
Each Single Element Calibration Standard for AA and ICP-OES is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.
Medchemexpress LLC JH-XVI-178 | 2648453-53-4 | MFCD09701325 | 98.9% | 435.91 g/mol | C22H22ClN7O | 5 MG
A potent, selective small-molecule inhibitor of cyclin-dependent kinases CDK8 and CDK19 for research use. The compound displays low clearance and moderate oral pharmacokinetic properties and is supplied as a high-purity research powder with recommended storage and solubility guidance.
- Potent, selective CDK8 and CDK19 inhibition with low-nanomolar IC50s (1 nM and 2 nM).
- High purity (≈98.9%) suitable for research applications.
- Supplied as a small research-scale powder (5 mg).
- Soluble in DMSO at 62.5 mg/mL; sonication recommended.
- Stable when stored as powder at -20°C for long-term storage.
Apexbio Technology LLC Annexin V-HF488/PI Apoptosis Kit 100assays
Annexin V is a Ca2 -dependent phospholipid-binding protein that specifically binds to phosphatidylserine (PS) Normally PS is localized on the inner leaflet of the cell membrane lipid bilayer During the early stages of apoptosis PS translocates from the inner leaflet to the outer surface of the cell membrane exposing it to the extracellular environment Due to Annexin V s high affinity for PS fluorescently labeled Annexin V (HF488) can be used as a fluorescent probe to detect apoptotic cells through flow cytometry or fluorescence microscopy with staining taking only 10-20 minutes Propidium iodide (PI) selectively binds double-stranded DNA and yields a red fluorescence PI is membrane-impermeable in healthy cells but can penetrate the membranes of late apoptotic and dead cells staining their nuclei Simultaneous staining with Annexin V-HF488 and PI enables differentiation between early apoptotic late apoptotic and dead cells
Waters Corp Waters Humanized mAb Mass Check Standard, Reversed Phase, Solid, 80 μg
The Humanized mAb Mass Check Standard supports the analysis of intact proteins by LC-MS, a preferred approach for characterizing biopharmaceuticals. It enables acquiring intact mass information, quickly confirming sequence and post-translational modifications, and interrogating product-related impurities.
- Supports benchmarking, proficiency testing, and system suitability for intact protein analysis.
- Stabilized and lyophilized format of NIST Reference Material 8671.
- Each vial contains approximately 80 μg of the standard.
- Manufactured to exact specifications and completely traceable.
- Stable for seven days at 4–8 °C after reconstitution.
- Separation mode: Reversed Phase.
- Formulation: Solid.
- Storage condition: −20°C ± 10°C (Freezer).
- Shelf life: 36 Months.
- Shipping condition: Ambient.
- Application: Protein.
Apexbio Technology LLC Protease Inhibitor Cocktail for bacterial cell extracts (100 X in DMSO) 100x(1ml A 1ml B)
Under stable environmental conditions endogenous protein synthesis and degradation are balanced thus maintaining stable cellular protein levels Cell crude extracts contain numerous endogenous enzymes such as phosphatases and proteases that can degrade proteins in the extracts During in vitro protein extraction from cells and tissues protein synthesis practically ceases while protein degradation increases The optimal way to enhance yields of intact proteins is to add inhibitors for these known enzymes The Protease Inhibitor Cocktail for bacterial cell extracts (100X in DMSO) is designed for bacterial extracts to enhance the stability of proteins This cocktail inhibits proteases responsible for degrading non-phosphorylated or phosphorylated protein substrates This Protease Inhibitor Cocktail is provided as a ready-to-use solution and it is formulated in DMSO
Apexbio Technology LLC Pyrophosphatase Inorganic (E. coli) 50 units
Pyrophosphatase Inorganic (E coli) purified from recombinant E coli strain carrying the E coli inorganic pyrophosphatase gene Inorganic pyrophosphatase (PPase) is a ubiquitous enzyme that catalyzes the hydrolysis of inorganic pyrophosphate into orthophosphate
Perkin Elmer US LLC Arsenic (As) Pure Standard, 1,000 µg/mL, 2% HNO3, 125 mL
Each Single Element Calibration Standard for AA and ICP-OES is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.
eMolecules 4136-21-4 | Ambeed | 2-Hydroxy-1-(4-methoxyphenyl)ethanone | 100mg | 696732465 | A833072 | MFCD00004668 | 166.176 | C9H10O3
AstaTech | 1-BUTYLDECAHYDRONAPHTHALENE | 0.25g | 248476021 | 30318 | 98.000 | 92369-80-7 | MFCD09746193 | 194.362 | C14H26
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Cayman Chemical JWH 302 Analytical Reference S
A cannabimimetic indole with 5-fold selectivity for the CB1 receptor (Ki = 17 nM) compared to the CB2 receptor (Ki = 89 nM); stimulates GTPγS binding of CB1 and CB2 receptors with EC50 values of 29.3 and 24.4 nM, respectively
Inorganic Ventures 10 000µg/mL URANIUM 125mL
Inorganic Ventures' 10,000 ppm (µg/mL) Uranium for ICP is a 125mL certified reference material set in a nitric acid matrix for stability. This uranium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. See Certificate of Analysis for expiration.
ATTENTION: Inorganic Ventures is no longer supplying paper copies of Certificate of Analyses(CoA) and Safety Data Sheets (SDS). Please use this link to download your copies: https://www.inorganicventures.com/coa-sds-search
Perkin Elmer US LLC Internal Standard Mix 125mL
Concentration of Element includes: Matrix Concentration 5-10 %, HNO3 10 µg/mL: Bi, Ge, In, Li6, Sc, Tb, Y
Perkin Elmer US LLC Yttrium (Y) Pure Standard, 1,000 µg/mL, 2% HNO3, 125 mL
Each Single Element Calibration Standard for AA and ICP-OES is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.
Perkin Elmer US LLC Phosphorus (P) Pure Standard, 1,000 µg/mL, H2O, 125 mL
Each Single Element Calibration Standard for AA and ICP-OES is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.