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HOBt (anhydrous)

HOBt (anhydrous)

Catalog No. A7025
Size Price Stock Qty
100g
$25.00
In stock
500g
$98.00
In stock
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Tel: +1-832-696-8203sales@apexbt.com

The dilution calculator is a useful tool which allows you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.

Calculate now!

Concentration (start)
x
Volume (start)
=
Concentration (final)
x
Volume (final)
 
 
 
C1
V1
C2
V2

calculate

The dilution calculator equation

The dilution calculator is based on the following equation:

Concentration(start) x Volume(start) = Concentration(final) x Volume(final)
This equation is commonly abbreviated as: C1V1 = C2V2
An example of a dilution calculation using the dilution calculator

What volume of a given 10 mM stock solution is required to make 20ml of a 50 μM solution?

Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=10 ml and V1 is the unknown:

  1. Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
  2. Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
  3. Enter 20 into the Volume (final) box and select the correct unit (milliliter)
  4. Press calculate
  5. The answer of 100 microliter (0.1 ml) appears in the Volume (start) box
 

The molarity calculator is a useful tool which allows you to calculate the:

  • mass of a compound required to prepare a solution of known volume and concentration
  • volume of solution required to dissolve a compound of known mass to a desired concentration
  • concentration of a solution resulting from a known mass of compound in a specific volume

Calculate now!

Mass
=
Concentration
x
Volume
x
MW*
 
 
 
g/mol
*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / CoA (available online).

calculate

The molarity calculator equation

The molarity calculator is based on the following equation:

Mass (g) = Concentration (mol/L) x Volume (L) x Molecular Weight (g/mol)
An example of a molarity calculation using the molarity calculator

What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?

  1. Enter 197.13 into the Molecular Weight (MW) box
  2. Enter 10 into the Concentration box and select the correct unit (millimolar)
  3. Enter 10 into the Volume box and select the correct unit (milliliter).
  4. Press calculate
  5. The answer of 19.713 mg appears in the Mass box
 

Quality Control & MSDS

View current batch:
Purity = 98.00% COA

Chemical Properties

Cas No. 2592-95-2
Synonyms 1 - Hydroxybenzotriazole
Formula C6H5N3O
Molecular Weight (MW) 135.1
Solubility Soluble in water or 1% acetic acid
Storage Desiccate at -20°C
SDF Download SDF

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Background

HOBt is one of the most widely used reagents in peptide synthesis. It is often used to activate the carboxyl group and inhibit racemization in the peptide coupling process.