Skip to Content
Merck

Key Documents

View All Documentation

Skip To

A1784

Aminopterin

synthetic (organic), ≥97% (TLC), dihydrofolate reductase inhibitor, powder

Synonym(s):

(S)-2-{4-[(2,4-Diaminopteridin-6-yl)methylamino]benzamido}pentanedioic acid, 4-Amino-PGA, 4-Aminofolic acid, 4-Aminopteroyl-L-glutamic acid

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Pack SizeSKUAvailabilityPrice

About This Item

Empirical Formula (Hill Notation):
C19H20N8O5
CAS Number:
54-62-6
Molecular Weight:
440.41
MDL number:
MFCD00036692
UNSPSC Code:
12352200
PubChem Substance ID:
24278186
NACRES:
NA.77
EC Number:
200-209-9
Beilstein/REAXYS Number:
69045
Form:
powder
Quality level:
200
Pricing and availability is not currently available.
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Aminopterin, powder

biological source

synthetic (organic)

Quality Level

200

description

Purity (≥98%)

form

powder

color

light yellow to yellow-brown

solubility

2 M NaOH: 50 mg/mL (Solutions may be stored for 1-2 days at 4°C.)

ε (extinction coefficient)

24,500 at 282 nm in 0.1 M NaOH at 1 M, 25,700 at 261 nm in 0.1 M NaOH at 1 M, 8,100 at 373 nm in 0.1 M NaOH at 1 M

storage temp.

−20°C

SMILES string

Nc1nc(N)c2nc(CNc3ccc(cc3)C(=O)N[C@@H](CCC(O)=O)C(O)=O)cnc2n1

InChI

1S/C19H20N8O5/c20-15-14-16(27-19(21)26-15)23-8-11(24-14)7-22-10-3-1-9(2-4-10)17(30)25-12(18(31)32)5-6-13(28)29/h1-4,8,12,22H,5-7H2,(H,25,30)(H,28,29)(H,31,32)(H4,20,21,23,26,27)/t12-/m0/s1

InChI key

TVZGACDUOSZQKY-LBPRGKRZSA-N

Gene Information

human ... FPGS(2356)
mouse ... Fpgs(14287)

Biochem/physiol Actions

Folic acid antagonist that binds to dihydrofolate reductase and inhibits its activity.
Folic acid antagonist. Aminopterin is actively transported into cells by the folate transporter. In the cell, it is converted to a high molecular weight polyglutamate metabolite by folylpolyglutamate synthase that, in turn, binds to dihydrofolate reductase and inhibits its activity. Aminopterin-polyglutamate is degraded intracellularly by γ-glutamyl hydrolase.

Features and Benefits

This compound is a featured product for Apoptosis research. Click here to discover more featured Apoptosis products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.

Other Notes

More potent, but more toxic, than methotrexate.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
A0779P4532SML2904
Aminopterin powder

Sigma-Aldrich

A1784

Aminopterin

p-Aminoclonidine hydrochloride solid

Sigma-Aldrich

A0779

p-Aminoclonidine hydrochloride

(−)-N6-(2-Phenylisopropyl)adenosine solid

Sigma-Aldrich

P4532

(−)-N6-(2-Phenylisopropyl)adenosine

AGF347 ≥98% (HPLC)

Sigma-Aldrich

SML2904

AGF347

form

powder

form

solid

form

solid

form

powder

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

100

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

solubility

2 M NaOH: 50 mg/mL (Solutions may be stored for 1-2 days at 4°C.)

solubility

45% (w/v) aq 2-hydroxypropyl-β-cyclodextrin: 1.4 mg/mL (Solutions may be stored for several days at 4 °C), boiling water: 100 mg/mL (Solutions may be stored for several days at 4 °C), 0.1 M HCl: soluble (Solutions may be stored for several days at 4 °C), methanol: soluble (Solutions may be stored for several days at 4 °C)

solubility

H2O: slightly soluble 0.3 mg/mL (Solutions may be stored for several days at 4°C.), 45% (w/v) aq 2-hydroxypropyl-β-cyclodextrin: 1.6 mg/mL (Solutions may be stored for several days at 4°C.)

solubility

DMSO: 2 mg/L, clear

color

light yellow to yellow-brown

color

white

color

white

color

white to beige

description

Purity (≥98%)

description

-

description

-

description

-

Still not finding the right product?

Explore all of our products under Aminopterin

pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

Danger

Hazard Classifications

Acute Tox. 1 Oral - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Skin Irrit. 2

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000509269
0000509269
0000490219
0000490219
0000490215

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Min Zhang et al.
Cell, 181(3), 637-652 (2020-04-10)
Many cytosolic proteins lacking a signal peptide, called leaderless cargoes, are secreted through unconventional secretion. Vesicle trafficking is a major pathway involved. It is unclear how leaderless cargoes enter into the vesicle. Here, we find a translocation pathway regulating vesicle
Aleem Gangjee et al.
Journal of medicinal chemistry, 48(16), 5329-5336 (2005-08-05)
We report, for the first time, the biological activities of four-carbon-atom bridged classical antifolates on dihydrofolate reductase (DHFR), thymidylate synthase (TS), and folylpolyglutamate synthetase (FPGS) as well as antitumor activity. Extension of the bridge homologation studies of classical two-carbon bridged
M Del Campo et al.
Teratology, 60(1), 10-12 (1999-07-21)
Maternal exposures to aminopterin and methotrexate have been associated with a pattern of malformation which includes prenatal-onset growth deficiency, severe lack of ossification of the calvarium, hypoplastic supraorbital ridges, small, low-set ears, micrognathia, and limb abnormalities. We report on a
View All Related Papers

Global Trade Item Number

SKUGTIN
A1784-100MG04061833020241
A1784-50MG04061833342992
A1784-1G04061833342985

Questions

Reviews

No rating value

Active Filters