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AFMK

CAS No.
52450-38-1
Chemical Name:
AFMK
Synonyms
Formyl-N-acetyl-5-methoxykynurenamine;N-γ-Acetyl-N-2-formyl-5-methoxykynurenamine;AFMK;NSC 688263;AFMK, 10 mM in DMSO;Melatonin Impurtiy 5;Melatonin Impurity 20;Acetyl-N-formyl-5-methoxykynurenamine;N1-Acetyl-N2-forMyl-5-MethoxykynuraMine;N-acetyl-N-formyl-5-methoxykynurenamine
CBNumber:
CB2366733
Molecular Formula:
C13H16N2O4
Molecular Weight:
264.28
MDL Number:
MFCD02683241
MOL File:
52450-38-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 00:24:23

AFMK Properties

Melting point 138-140°C
Boiling point 589.4±50.0 °C(Predicted)
Density 1.216±0.06 g/cm3(Predicted)
storage temp. 2-8°C
solubility DMSO: >10 mg/mL
form solid
pka 13.79±0.70(Predicted)
color white
InChI 1S/C13H16N2O4/c1-9(17)14-6-5-13(18)11-7-10(19-2)3-4-12(11)15-8-16/h3-4,7-8H,5-6H2,1-2H3,(H,14,17)(H,15,16)
InChIKey JYWNYMJKURVPFH-UHFFFAOYSA-N
SMILES COc1ccc(NC=O)c(c1)C(=O)CCNC(C)=O
FDA UNII S82P8JZ4YJ
UNSPSC Code 12352116
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)
GHS06
Signal word  Danger
Hazard statements  H301
Precautionary statements  P264-P270-P301+P310-P321-P330-P405-P501
Hazard Codes  T
Risk Statements  25
Safety Statements  45
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard Classifications Acute Tox. 3 Oral
NFPA 704
0
2 0

AFMK price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SMB01335 N1-Acetyl-N2-formyl-5-methoxykynuramine ≥95% (HPLC) 52450-38-1 5mg $101 2026-04-30 Buy
Sigma-Aldrich SMB01335 N1-Acetyl-N2-formyl-5-methoxykynuramine ≥95% (HPLC) 52450-38-1 25mg $403 2026-04-30 Buy
Cayman Chemical 10005254 AFMK ≥98% 52450-38-1 1mg $26 2026-04-30 Buy
Cayman Chemical 10005254 AFMK ≥98% 52450-38-1 5mg $98 2026-04-30 Buy
Cayman Chemical 10005254 AFMK ≥98% 52450-38-1 10mg $147 2026-04-30 Buy
Product number Packaging Price Buy
SMB01335 5mg $101 Buy
SMB01335 25mg $403 Buy
10005254 1mg $26 Buy
10005254 5mg $98 Buy
10005254 10mg $147 Buy

AFMK Chemical Properties,Uses,Production

Description

Melatonin is a neurotransmitter widely distributed in eukaryotes and is closely linked to circadean rhythms in mammals including humans. AFMK is a melatonin metabolite first identified in rat brain. AFMK has antioxidant and free radical scavenging activities in several experimental models. AFMK may also be measured in plasma as an index of melatonin synthesis and metabolism.

Chemical Properties

Light Brown Solid

Uses

A metabolite of melatonin (M215000).

Definition

ChEBI: N-gamma-Acetyl-N-2-Formyl-5-Methoxykynurenamine is an aromatic ketone.

in vivo

AFMK is a potent antioxidant in vivo. AFMK significantly reverses radiation-induced decline in the total antioxidant capacity of plasma in mice[2].

Animal Model:Male C57BL mice 8 wk of age[2]
Dosage:10 mg/kg body weight
Administration:Intraperitoneal injection
Result:Radiation-induced decline in the total antioxidant capacity of plasma was significantly reversed in AFMK pretreated mice.
AFMK-pretreated irradiated groups showed a significantly lower value of comet tail length and % DNA in tail.

IC 50

Human Endogenous Metabolite

References

[1] F. HIRATA. In vitro and in vivo formation of two new metabolites of melatonin.[J]. The Journal of Biological Chemistry, 1974, 3 1: 1311-1313. DOI: 10.1016/s0021-9258(19)42976-1
[2] DUN-XIAN TAN. N1-acetyl-N2-formyl-5-methoxykynuramine, a biogenic amine and melatonin metabolite, functions as a potent antioxidant[J]. FASEB Journal, 2001, 15 12: 1-16. DOI: 10.1096/fj.01-0309fje
[3] CATHERINE HARTHé . Radioimmunoassay of N-acetyl-N-formyl-5-methoxykynuramine (AFMK): a melatonin oxidative metabolite[J]. Life sciences, 2003, 73 12: Pages 1587-1597. DOI: 10.1016/s0024-3205(03)00483-1

73-31-4
52450-38-1
Synthesis of AFMK from Melatonin

AFMK Suppliers

Global( 91)Suppliers
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65
Guangzhou Isun Pharmaceutical Co., Ltd 020-39119399 18927568969 isunpharm@qq.com China 4773 55
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Finetech Industry Limited 027-87465837 19945049750 sales@finetechnology-ind.com China 9331 58
Alfa Chemistry 1-516-6625404 support@alfa-chemistry.com United States 9170 60
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Shanghai Chaolan Chemical Technology Center QQ:65489617 13301690235 Sales@ATKchemical.com China 9699 58

View Lastest Price from AFMK manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
AFMK pictures 2026-05-15 AFMK
52450-38-1
$40.00-113.00 98.34% 10g TargetMol Chemicals Inc.
  • AFMK pictures
  • AFMK
    52450-38-1
  • $40.00-113.00
  • 98.34%
  • TargetMol Chemicals Inc.

AFMK Spectrum

AFMK N-G-ACETYL-N-2-FORMYL-5-METHOXYKYNURENAMINE NSC 688263 N-[3-[2-(FORMYLAMINO)-5-METHOXYPHENYL]-3-OXOPROPYL]ACETAMIDE N-g-Acetyl-N-2-formyl-5-methoxzykynurenamine Acetyl-N-formyl-5-methoxykynurenamine N-[3-(2-formamido-5-methoxy-phenyl)-3-oxo-propyl]acetamide N-acetyl-N-formyl-5-methoxykynurenamine N--Acetyl-N-2-formyl-5-methoxykynurenamine N-[3-[2-(Formylamino)-5-methoxyphenyl]-3-oxopropyl]acetamide, NSC 688263 N1-Acetyl-N2-forMyl-5-MethoxykynuraMine N-3-Acetyl-N-2-formyl-5-methoxykynurenamine Acetamide, N-[3-[2-(formylamino)-5-methoxyphenyl]-3-oxopropyl]- N-[3-[2-(formylamino)-5-methoxyphenyl]-3-oxypropyl]-acetamide AFMK,Acetamide,N-[3-[2-(formylamino)-5-methoxyphenyl]-3-oxopropyl]- Melatonin Impurtiy 5 AFMK, 10 mM in DMSO N1-Acetyl-N2-formyl-5-methoxykynuramine N-{2-[3-(Acetylamino)propanoyl]-4-methoxyphenyl}formamide Formyl-N-acetyl-5-methoxykynurenamine N-γ-Acetyl-N-2-formyl-5-methoxykynurenamine Melatonin Impurity 20 52450-38-1 Aromatics Metabolites & Impurities Various Metabolites and Impurities Metabolites