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DNA/RNA/Protein/Chemical Molecular Weight Calculator           Click here for more biology tools.
Applet runs on Java-enabled browsers
PC: Internet Explorer 5.5 or higher and Netscape 4.08 or higher
Mac: Internet Explorer 5.0, IE5.1.4 or higher (IE5.1 will not work because of a bug.)
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DNA/RNA/Protein/Chemical Molecular Weight Calculator

This calculator calculates the molecular weight for nucleotic acids (DNA or RNA), protein/peptide, or chemicals.

  • For DNA/RNA molecular weight, users have the option to input sequences or sequence length. Degenerate codes can be accepted. Blanks and numbers will be automatically ignored. For modified DNA/RNA or for primer/oligo calculations, please use the Oligo Calculator.
  • For protein/peptide molecular weight, users have the option to input sequences or sequence length. If sequences are inputed, they must in the single-letter codes. Blanks and numbers will be automatically ignored.
  • For chemicals, input the chemical composition. Note the input must be case-sensitive. For example CO represents carbon oxide while Co is the element Cobalt. Parenthesis can be used. Blanks will be ignored.

    Thanks for using our software! Please let us know your suggestions and comments.

  • THIS SOFTWARE IS PROVIDED BY CHANG BIOSCIENCE ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CHANG BIOSCIENCE OR ITS SPONSORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


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