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CAS RN 738-70-5

IUPAC Name: 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Synonyms: trimethoprim abacin alprim sulfatrim bactrim DS imexim sigaprim bactin ipral eusaprim
Molecular Weight (g/mol): 290.32
Molecular Formula: C14H18N4O3
InChi Key: IEDVJHCEMCRBQM-UHFFFAOYSA-N
SMILES: COC1=CC(CC2=CN=C(N)N=C2N)=CC(OC)=C1OC
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1 – 11 of 11 results
1

Thermo Scientific Chemicals Trimethoprim

CAS: 738-70-5 Molecular Formula: C14H18N4O3 Synonym: 2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine

EDGE
CAS 738-70-5
Synonym 2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine
Molecular Formula C14H18N4O3
2

Trimethoprim, 50 mg/ml in DMSO, sterile-filtered, Thermo Scientific Chemicals

CAS: 738-70-5 Molecular Formula: C14H18N4O3 Molecular Weight (g/mol): 290.323 MDL Number: MFCD00036761 InChI Key: IEDVJHCEMCRBQM-UHFFFAOYSA-N PubChem CID: 5578 ChEBI: CHEBI:45924 IUPAC Name: 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine SMILES: COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N

PubChem CID 5578
CAS 738-70-5
Molecular Weight (g/mol) 290.323
ChEBI CHEBI:45924
MDL Number MFCD00036761
SMILES COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N
IUPAC Name 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
InChI Key IEDVJHCEMCRBQM-UHFFFAOYSA-N
Molecular Formula C14H18N4O3
3

Thermo Scientific Chemicals Trimethoprim, 98%

CAS: 738-70-5 Molecular Formula: C14H18N4O3 Molecular Weight (g/mol): 290.32 InChI Key: IEDVJHCEMCRBQM-UHFFFAOYSA-N Synonym: trimethoprim,proloprim,trimpex,bactramin,monotrim,monotrimin,trimetoprim,trimopan,monoprim,syraprim PubChem CID: 5578 ChEBI: CHEBI:45924 IUPAC Name: 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine SMILES: COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N

PubChem CID 5578
CAS 738-70-5
Molecular Weight (g/mol) 290.32
ChEBI CHEBI:45924
SMILES COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N
Synonym trimethoprim,proloprim,trimpex,bactramin,monotrim,monotrimin,trimetoprim,trimopan,monoprim,syraprim
IUPAC Name 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
InChI Key IEDVJHCEMCRBQM-UHFFFAOYSA-N
Molecular Formula C14H18N4O3
4

Trimethoprim, 99.8%, MP Biomedicals™

CAS: 738-70-5 Molecular Formula: C14H18N4O3 Molecular Weight (g/mol): 290.323 InChI Key: IEDVJHCEMCRBQM-UHFFFAOYSA-N Synonym: 2,4-Diamino-5-[3,4,5-trimethoxy-benzyl]pyrimidine PubChem CID: 5578 ChEBI: CHEBI:45924 IUPAC Name: 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine SMILES: COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N

PubChem CID 5578
CAS 738-70-5
Molecular Weight (g/mol) 290.323
ChEBI CHEBI:45924
SMILES COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N
Synonym 2,4-Diamino-5-[3,4,5-trimethoxy-benzyl]pyrimidine
IUPAC Name 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
InChI Key IEDVJHCEMCRBQM-UHFFFAOYSA-N
Molecular Formula C14H18N4O3
5

Trimethoprim, Dr. Ehrenstorfer

Discover Dr. Ehrenstorfer’s certified reference materials: available in multiple formats, including multi-component regulatory mixtures, to power your food and environmental analysis with traceable, ISO-accredited quality

6

Trimethoprim, LoGiCal

LoGiCal's certified reference materials as neats, native solutions and stable isotope labelled solutions, with expert documentation and support. From forensic to clinical labs, choose LoGiCal for confidence, compliance, and analytical excellence.

7
Promotions Available

Trimethoprim 1000 μg/mL in Acetonitrile, Dr. Ehrenstorfer

Discover Dr. Ehrenstorfer’s certified reference materials: available in multiple formats, including multi-component regulatory mixtures, to power your food and environmental analysis with traceable, ISO-accredited quality

8

Trimethoprim, TRC

CAS: 738-70-5 Molecular Formula: C14 H18 N4 O3 Molecular Weight (g/mol): 290.32 Synonym: Trimethoprim,5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine,Pyrimidine, 2,4-diamino-5-(3,4,5-trimethoxybenzyl)- (7CI,8CI),2,4-Pyrimidinediamine, 5-[(3,4,5-trimethoxyphenyl)methyl]-,2,4-Diamino-5-(3',4',5'-trimethoxybenzyl)pyrimidine,2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine,BW 56-72,Instalac,Monotrim,NIH 204,NSC 106568,Proloprim,Syraprim,Tiempe,Trimanyl,Trimethioprim,Trimetoprim,Trimogal,Trimopan,Trimpex,Triprim,Uretrim,Wellcoprim IUPAC Name: 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine SMILES: COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OC

CAS 738-70-5
Molecular Weight (g/mol) 290.32
SMILES COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OC
Synonym Trimethoprim,5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine,Pyrimidine, 2,4-diamino-5-(3,4,5-trimethoxybenzyl)- (7CI,8CI),2,4-Pyrimidinediamine, 5-[(3,4,5-trimethoxyphenyl)methyl]-,2,4-Diamino-5-(3',4',5'-trimethoxybenzyl)pyrimidine,2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine,BW 56-72,Instalac,Monotrim,NIH 204,NSC 106568,Proloprim,Syraprim,Tiempe,Trimanyl,Trimethioprim,Trimetoprim,Trimogal,Trimopan,Trimpex,Triprim,Uretrim,Wellcoprim
IUPAC Name 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Molecular Formula C14 H18 N4 O3
9

Melford Trimethoprim

Trimethoprim is a bacteriostatic antibiotic that inhibits bacterial dihydrofolate reductase, an enzyme involved in the synthesis of tetrahydrofolic acid.

CAS 738-70-5
Chemical Name or Material Trimethoprim
Molecular Formula C14H18N4O3
10

Trimethoprim, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

11

TOKU-E™ Trimethoprim ReadyMade™ Solution

Trimethoprim ReadyMade™ Solution is provided as a sterile-filtered solution of Trimethoprim in DMSO.

ENCOMPASS_PREFERRED
Molecular Weight (g/mol) 290.32 g/mol
Source Synthetic
Percent Purity >98%
Formula Weight 290.32 amu
Assay Percent Notes Trimethoprim, Dried Basis
Shipping Condition Ice Pack
Color Clear Colorless to Pale Yellow
Physical Form Liquid
Chemical Name or Material Trimethoprim
Grade Antibiotic
Concentration 25.0 to 26.5 mg/mL
Sterility Sterile
Sterile Filtered Yes, 0.22 μm
Assay Percent Range 98.5 to 101.0%
Concentration or Composition (by Analyte or Components) Trimethoprim: ≥1 to <5%, DMSO ≥90 to ≤100%
CAS 738-70-5
Health Hazard 3 Suspected of damaging fertility or the unborn child
Health Hazard 2 Toxic if swallowed
Flash Point 87°C
Packaging 2 mL plastic vial
Health Hazard 1 Combustible liquid
Synonym TMP, Proloprim, Trimpex
Purity Grade Notes >98% (HPLC)
Recommended Storage -20°C, Protect from light
Shelf Life 2 years (product retested to extend with 2 years)
IUPAC Name 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Molecular Formula C14H18N4O3
Product Line ReadyMade™ Solutions