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Acipimox

CAS No.
51037-30-0
Chemical Name:
Acipimox
Synonyms
K-9321;Acimus;Olbetam;Olbemox;ACIPIMOX;Acipimox (K-9321);Acyclovir therapy;AcipiMox-13C2,15N2;Acipimox USP/EP/BP;Acipimox - Bio-X ?
CBNumber:
CB2490951
Molecular Formula:
C6H6N2O3
Molecular Weight:
154.12
MDL Number:
MFCD00865757
MOL File:
51037-30-0.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-08-29 11:56:07

Acipimox Properties

Melting point 177-180 °C
Boiling point 539.0±45.0 °C(Predicted)
Density 1.44±0.1 g/cm3(Predicted)
storage temp. Inert atmosphere,2-8°C
solubility Soluble in methanol, water (100 mM), DMSO (100 mM), ethanol (<1 mg/ml at 25° C), and 1 M NH4OH (1 mg/ml).
form Solid
pka 2.80±0.10(Predicted)
color Yellow
Merck 14,111
InChI InChI=1S/C6H6N2O3/c1-4-2-7-5(6(9)10)3-8(4)11/h2-3H,1H3,(H,9,10)
InChIKey DJQOOSBJCLSSEY-UHFFFAOYSA-N
SMILES C1(C(O)=O)N=CC(C)=[N+]([O-])C=1
CAS DataBase Reference 51037-30-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII K9AY9IR2SD
ATC code C10AD06
EPA Substance Registry System Pyrazinecarboxylic acid, 5-methyl-, 4-oxide (51037-30-0)
UNSPSC Code 12352205
NACRES NA.79

Pharmacokinetic data

Excreted unchanged in urine 86-90%
Volume of distribution 0.3-0.4(L/kg)
Biological half-life 2 / Increased

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319
Precautionary statements  P305+P351+P338
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36
Safety Statements  26
WGK Germany  3
RTECS  UQ2453000
HS Code  2933.99.8290
Storage Class 11 - Combustible Solids
Toxicity LD50 orally in mice: 3500 mg/kg (Ambrogi)
NFPA 704
0
2 0

Acipimox price More Price(79)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A7856 Acipimox ≥99% (TLC) 51037-30-0 1g $123 2025-07-31 Buy
TCI Chemical M2053 5-Methylpyrazine-2-carboxylic Acid 4-Oxide >98.0%(GC) 51037-30-0 1g $67 2026-04-30 Buy
TCI Chemical M2053 5-Methylpyrazine-2-carboxylic Acid 4-Oxide >98.0%(GC) 51037-30-0 5g $200 2026-04-30 Buy
Cayman Chemical 26090 Acipimox ≥95% 51037-30-0 500mg $49 2026-04-30 Buy
Cayman Chemical 26090 Acipimox ≥95% 51037-30-0 1g $86 2026-04-30 Buy
Product number Packaging Price Buy
A7856 1g $123 Buy
M2053 1g $67 Buy
M2053 5g $200 Buy
26090 500mg $49 Buy
26090 1g $86 Buy

Acipimox Chemical Properties, Uses, Production

Description

Acipimox is a nicotinic acid derivate that structurally related to nicotinic acid. Like nicotinic acid, lowers lipids effectively, but unlike nicotinic acid, acipimox is longer acting and therefore much less prone to produce free fatty acid rebounding. It is usually employed in man in the therapy of hypertriglyceridemia. In addition to its lipid lowering activity, it produces a beneficial elevation of the anti-atherogenic high density lipoprotein subfraction, HDL2. Acipimox is recommended as a lipid-lowering agent to treat hyperlipidemia in patients with noninsulin dependent diabetes mellitus.

Chemical Properties

Yellow Solid

Originator

Erbamont (Italy)

Characteristics

The advantages of acipimox to niacin are as follows:
Longer duration of inhibition of hormone-sensitive lipase than niacin.
A lower dose (250 mg BD or TDS) of acipimox is required to lower lipid levels and better tolerability with fewer side effects than niacin.
Acipimox increases insulin sensitivity, while niacin causes insulin resistance. Thus, acipimox has a favorable role in patients with dyslipidemia and diabetes, whereas niacin is contraindicated in diabetes.
Acipimox has adjuvant role in the management of PCOD and increases tissuesensitivity to GH, whereas niacin does not.

Uses

Acipimox is a long-acting antilipemic agent and used for the treatment of hyperlipoproteinemias, in particular hypertriglyceridemias, and as adjunctive therapy for affecting cholesterol metabolism.

Definition

ChEBI: 5-methyl-4-oxido-2-pyrazin-4-iumcarboxylic acid is a pyrazinecarboxylic acid.

Preparation

Synthesis of acipimox: Under cooling and stirring, 78 g of maleic anhydride was dissolved in a solution of 60 ml of chloroform, and 40 ml of 30% hydrogen peroxide was added. After 2 h, 4.8 g of 5-Methyl-2-pyrazinecarboxylic acid was added, and the temperature was kept at 0-5 °C for 2 d. The maleic acid was filtered off. Concentrate to a small volume, add ethyl acetate, and filter to obtain 1.1 g of acipimox, the melting point of which is 178-180 °C.

brand name

OLBETAM

benefits

1. Act on the liver and adipose tissue, inhibit the lipolysis of adipose tissue, thereby reducing plasma total cholesterol, triglyceride, low-density lipoprotein, and very low-density lipoprotein.
2. Increase high-density lipoprotein in plasma, which is beneficial to the transport and clearance of cholesterol.
3. Increase liver glycogen synthesis and lower blood sugar levels. Asimimox can be used as the first-choice lipid-lowering drug for the treatment of various hyperlipidemias, especially for those with diabetes mellitus with hyperlipidemia.

Biological Activity

Acipimox, also known as olbemox, is a nicotinic acid analog. It functions as an anti-lipolytic drug and vasodilator. Acipimox may be used in various metabolic studies involving insulin and ghrelin. It lowers total cholesterol and total triglycerides, which helps in the treatment of hyperlipidemia.

Clinical Use

Acipimox was introduced in Europe to treat hyperlipidemia in 1985. Acipimox is a weak agonist of GPR109A with micromolar binding and functional activity.Like niacin, acipimox raises HDL-C and triggers vasodilation in humans.However, it remains unclear whether acipimox causes mild hyperglycemia as is observed with niacin.

Side effects

Adverse effects include flushing (associated with Prostaglandin D2), rash, palpitations, and GI disturbances (nausea, dyspepsia, diarrhoea and upper abdominal pain) . Flushing can be reduced by taking aspirin 20-30 min before taking Acipimox. High doses can cause disorders of liver function, impair glucose tolerance and precipitate gout.

Drug interactions

Potentially hazardous interactions with other drugs. It can be combined with powerful hypolipidemic drugs such as fenofibrate and lovastatin to enhance the efficacy and reduce the dose and side effects of the drug. Acyclolimus can improve the efficacy of hypoglycemic drugs, so it is necessary to reduce the dose of hypoglycemic drugs and adjust the dose according to the patient's blood sugar. In antioxidant therapy, it can be used in combination with probucol.

Metabolism

Acipimox is not significantly metabolised and is eliminated almost completely intact by the urinary route.

Mode of action

Acipimox is a nicotinic acid derivative (methyl-pyrazine-carboxylic-acid-oxide) that acts on the niacin receptor (GPR109A).The mechanism of action is similar to niacin (inhibition of hormone-sensitive lipase). However,the inhibition of hormone-sensitive lipase by acipimox is remarkably longer (9-12 h) than that of niacin (3 h). Similar to niacin, acipimox also lowers the levels of lp(a).

References

[1] Ana T.M.G. Santomauro, Guenther Boden, Maria E.R. Silva, Dalva M. Rocha, Rosa F. Santos, Mileni J.M. Ursich, Paula G. Strassmann and Bernardo L. Wajchenberg, Overnight Lowering of Free Fatty Acids With Acipimox Improves Insulin Resistance and Glucose Tolerance in Obese Diabetic and Nondiabetic Subjects, Diabetes, 1999, vol. 48, 1836-1841
[2] K. C. Shih, C. F. Kwok, C. M. Hwu, L. C. Hsiao, S. H. Li, Y. F. Liu, L. T. Ho, Acipimox attenuates hypertriglyceridemia in dyslipidemic noninsulin dependent diabetes mellitus patients without perturbation of insulin sensitivity and glycemic control, Diabetes Research and Clinical Practice, 1997, vol. 36, 113-119

5521-55-1
51037-30-0
Synthesis of Acipimox from 5-Methyl-2-pyrazinecarboxylic acid

Acipimox Preparation Products And Raw materials

Global Suppliers ( 354)
Supplier Tel Email Country ProdList Advantage
JINAN SHENGQI PHARMACEUTICAL CO., LTD 0531-88892685 18660160628 2153390475@qq.com China 139 58
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
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
LGM Pharma 1-(800)-881-8210 inquiries@lgmpharma.com United States 2110 70
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
XiaoGan ShenYuan ChemPharm co,ltd 15527621225; 15527621225 1791901229@qq.com China 6742 52

View Latest Price from Acipimox manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Acipimox pictures 2026-09-01 Acipimox
51037-30-0
1kg 99% 20tons Shaanxi TNJONE Pharmaceutical Co., Ltd
Acipimox pictures 2026-08-29 Acipimox
51037-30-0
$30.00-58.00 99.26% 10g TargetMol Chemicals Inc.
Acipimox pictures 2026-08-25 Acipimox
51037-30-0
$85.00-850.00 10kg 0.99 20tons Zibo Hangyu Biotechnology Development Co., Ltd
  • Acipimox pictures
  • Acipimox
    51037-30-0
  • $0.00
  • 99%
  • Shaanxi TNJONE Pharmaceutical Co., Ltd
  • Acipimox pictures
  • Acipimox
    51037-30-0
  • $30.00-58.00
  • 99.26%
  • TargetMol Chemicals Inc.
  • Acipimox pictures
  • Acipimox
    51037-30-0
  • $85.00-850.00
  • 0.99
  • Zibo Hangyu Biotechnology Development Co., Ltd

Acipimox Spectrum

5-methyl-4-oxido-2-pyrazin-4-iumcarboxylic acid 4-Oxo-5-Methyl-2-Pyrazine-carboxylic Acid 4-Oxide-5-Methylpyrazine-2-CarboxylicAcid 2-Carboxy-5-methylpyrazine 4-oxide, 5-Methylpyrazinecarboxylic acid 4-oxide K-9321 Olbemox Olbetam 5-Carboxy-2-methylpyrazine 1-oxide Acipimox (5-Methylpyrazinecarboxylic acid 4-oxide) 2-Pyrazinecarboxylic acid, 5-methyl-, 4-oxide 5-Methyl-4-oxide-2-pyrazinecarboxylicacid 5-METHYLPYRAZINECARBOXYLICACID4-OXIDE 5-METHYLPYRANZINECARBOXYLIC ACID 4-OXIDE Acipimox Solution, 1000ppm Acipimox Solution, 100ppm 6-Methyl-1-oxo-1$l^{5},4-pyrazine-3-carboxylic acid AcipiMox-13C2,15N2 2-Carboxy-5-methylpyrazine 4-oxide ACIPIMOX 5-methyl-2-pyrazinecarboxylicaci4-oxide 5-methyl-2-pyrazinecarboxylicacid4-oxide 5-methylpyrazine-2-carboxylic acid 4-oxide 5-Methylpyrazine-2-carboxylicAcid4-Oxide> Methylpyrazine Oxide 5-Methyl-4-oxidopyrazin-4-ium-2-carboxylic acid Acipimox USP/EP/BP Acipimox (K-9321) Acyclovir therapy Acipimox Powder USP Standard 5-methyl-4-oxidopyrazin-4-ium-2-carboxylicaci 5-Methylpyrazine-2-carboxylic Acid 4-Oxide, ≥ 98.0% Acimus Acipimox, 10 mM in DMSO Acipimox - Bio-X ? 51037-30-0 OLBEMOX Pharmaceuticals Pyrazine Heterocycles Intermediates & Fine Chemicals