Advanced Search



Trimethoprim

SIGMA/92131 - ≥99.0% (HPLC)

Synonym: 2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine; NSC 106568

CAS Number: 738-70-5
Empirical Formula (Hill Notation): C14H18N4O3
Molecular Weight: 290.32
EC Number: 212-006-2
MDL Number: MFCD00036761
Linear Formula: C14H18N4O3
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-92131-1G 1 g
 $45.70
1/EA		 Add To Favorites
45-92131-5G 5 g
 $159.00
1/EA		 Add To Favorites
45-92131-25G 25 g
 $625.00
1/EA		 Add To Favorites

 

antibiotic activity spectrum Gram-negative bacteria
  Gram-positive bacteria
  mycobacteria
assay ≥99.0% (HPLC)
biological source synthetic
color white to light yellow
form powder
InChI 1S/C14H18N4O3/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)
InChI key IEDVJHCEMCRBQM-UHFFFAOYSA-N
mode of action DNA synthesis | interferes
  enzyme | inhibits
mp ≥199.0 °C
Quality Level 200 
SMILES string COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OC
storage temp. 2-8°C
Application: Primarily used as an antibacterial agent. Dihydrofolate reductase inhibitor with selectivity for the prokaryote enzyme.
Application: Trimethoprim is primarily used as an antibacterial agent. It is used in susceptibility studies of Mycobacterium tuberculosis and mechanism of resistance studies in Haemophilus influenzae .
Biochem/physiol Actions: Inhibits the synthesis of tetrahydrofolate by procaryote specific dihydrofolate reductase (DHFR).
Biochem/physiol Actions: Trimethoprim is a dihydrofolate reductase inhibitor with selectivity for the prokaryote enzyme.
General description: Chemical structure: pyrimidine
Other Notes: Keep container tightly closed in a dry and well-ventilated place.Light sensitive. Store under inert gas. Moisture sensitive. Product is sensitive to light and moisture.
Packaging: 1g,5g,25g
Symbol GHS07  GHS07
Signal word Warning
Hazard statements H302
Precautionary statements P264 - P270 - P301 + P312 - P501
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity ≥99.0% (HPLC)
mp ≥199.0 °C
Storage Temp. 2-8°C
UNSPSC 51101500

The following items have been added to your cart:

Choose a favorite list for this item:
Catalog Number Description Price
$

Returns/Order support

Please fill out the form below if you want to request order support from Krackeler Scientific.


Quick Order

* Required


New Year Price Updates

We are currently working diligently to update our website pricing information for the New Year. If you place an order, you will be acknowledged with any corrected pricing. If you'd like the most current information sooner, please don't hesitate to drop us an email or give us a call and we'd be happy to assist. Thank you for your patience while we are updating.

800-334-7725
office@krackeler.com


Play Video

To Request a Quote

  1. Search or Browse for items and add to them to your Shopping Cart.
  2. Click the "Request Quote" button at the bottom of the Shopping Cart page.
  3. Fill out required fields.
  4. Optionally you can convert to standard checkout mode by choosing a payment type.
  5. Click "Request Quote" at the bottom of the page.

You will be contacted with a quote.

To Order From a Quote

  1. Register and login to the website.
  2. Receive a quote from your sales representative or customer service.
  3. Have your copy of the quote in hand.
  4. Visit our quote module to search for your quote.
Back to Top