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Catalog Number:
(TCA2209-25G)
Supplier:
TCI America
Description:
CAS Number: 13171-00-1
MDL Number: MFCD00046324 Molecular Formula: C17H24O Molecular Weight: 244.38 Purity/Analysis Method: >98.0% (GC) Form: Crystal Boiling point (°C): 117 Melting point (°C): 78 Lambda max.: 253 nm (EtOH)
Supplier:
VWR International
Description:
Durable round bottom flasks with 3 necks at an angle.
Supplier:
AMBEED, INC
Description:
2-Chloro-3,6-difluorobenzaldehyde, Purity: 98%, CAS Number: 261762-39-4, Appearance: Form: solid, Storage: Inert atmosphere, 2-8 deg C, Size: 250mg
Supplier:
TCI America
Description:
CAS Number: 2713-34-0
MDL Number: MFCD00002255 Molecular Formula: C6H4F2O Molecular Weight: 130.09 Purity/Analysis Method: >98.0% (GC) Form: Crystal Boiling point (°C): 68 Melting point (°C): 54 Flash Point (°C): 70
Supplier:
VWR International
Description:
Get a seamless transition from source to system.
Supplier:
VWR International
Description:
These HDPE coated wire racks are durable for transport or sample handling.
Supplier:
Adipogen
Description:
Phenolic dyes with high pKas - such as 7-hydroxycoumarin (often called umbelliferone) and the more common 7-hydroxy-4-methylcoumarin - are not fully deprotonated and therefore not fully fluorescent unless the pH of the reaction mixture is raised to above pH ~10. Thus, substrates derived from these fluorophores are seldom used for continuous measurement of enzymatic activity in solution or live cells. The similar 3-cyano-7-hydroxycoumarin and 6,8-difluoro-7-hydroxy-4-methylcoumarin have lower pKas, making them suitable for a broader range of applications. Moreover, the -trifluoromethylumbelliferone product has longer-wavelength spectra and stronger absorbance than -methylumbelliferone. Ether, ester and phosphate substrates derived from these phenolic dyes may be fluorescent but invariably exhibit shorter-wavelength absorption and emission spectra.
Catalog Number:
(TCD1122-025G)
Supplier:
TCI America
Description:
CAS Number: 2648-61-5
MDL Number: MFCD00000844 Molecular Formula: C8H6Cl2O Molecular Weight: 189.04 Purity/Analysis Method: >97.0% (GC) Form: Clear Liquid Boiling point (°C): 247 Flash Point (°C): 110 Freezing point (°C): 18 Specific Gravity (20/20): 1.34
Supplier:
AMBEED, INC
Description:
2,6-Difluoroanisole, Purity: 98%, CAS Number: 437-82-1, Appearance: Colorless to pale-yellow Liquid, Storage: Sealed in dry, Room Temperature, Size: 1g
Supplier:
VWR International
Description:
Spare Closures for VWR® Media Bottles
Supplier:
VWR International
Description:
Stand up to aggressive fluids.
Supplier:
VWR International
Description:
Reduced particle entrapment with ultra-smooth inner surface.
Supplier:
AMBEED, INC
Description:
3,5-Difluorobenzoyl chloride, Purity: 95%, CAS Number: 129714-97-2, Appearance: Form: liquid, Storage: Inert atmosphere, Room Temperature, Size: 5g
Supplier:
VWR International
Description:
Worry-free petroleum-based transfer.
Supplier:
VWR International
Description:
An accessory for platforms used with VWR* and VWR Signature* Orbital Shakers. Stainless steel construction with a flat head screw for attachment to platforms. Capacity, 33x34cm: 8. Capacity, 45x45cm: 13. Capacity, 61x61cm: 24. Capacity, 61x91cm: 32.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the
 is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the
is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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