1. Cell Cycle/DNA Damage
  2. PARP

Nicotinamide (Synonyms: Niacinamide; Nicotinic acid amide; Vitamin B3)

Cat. No.: HY-B0150 Purity: >98.0%
Handling Instructions

Nicotinamide is a water-soluble vitamin, an active component of coenzymes NAD and NADP, and acts as poly (ADP-ribose) polymerase (PARP) inhibitor.

For research use only. We do not sell to patients.
Nicotinamide Chemical Structure

Nicotinamide Chemical Structure

CAS No. : 98-92-0

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO USD 66 In-stock
1 g USD 60 In-stock
5 g USD 78 In-stock
10 g   Get quote  
50 g   Get quote  

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  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References


Nicotinamide is a water-soluble vitamin, an active component of coenzymes NAD and NADP, and acts as poly (ADP-ribose) polymerase (PARP) inhibitor.

In Vitro

Pretreatment with the poly (ADP-ribose) polymerase (PARP) inhibitor nicotinamide is able to prevent HCN2 cell death. When nicotinamide is added prior to t-BuOOH, it is able to prevent neuronal cell death and inhibit apoptosis. Nicotinamide-pretreated neurons have higher expression levels of inhibitors of apoptosis (IAP) genes[1]. Nicotinamide inhibits vasoconstriction by ET. Nicotinamide also alleviates oxidative stress, which exacerbates PE and FGR[3].

In Vivo

Normal and streptozotocin-nicotinamide induced adult male diabetic rats receive quercetin (10, 25 and 50 mg/kg/bw) orally, and cause significant decrease in FBG and cardiac injury marker levels with increased in insulin levels[2]. Nicotinamide improves maternal hypertension, proteinuria, and glomerular endotheliosis in RUPP mice. Moreover, nicotinamide prolongs pregnancies, and improves survival and growth of the embryos in RUPP PE mice[3].

Clinical Trial
Preparing Stock Solutions
Concentration Volume Mass 1 mg 5 mg 10 mg
1 mM 8.1887 mL 40.9433 mL 81.8867 mL
5 mM 1.6377 mL 8.1887 mL 16.3773 mL
10 mM 0.8189 mL 4.0943 mL 8.1887 mL
Please refer to the solubility information to select the appropriate solvent.
Animal Administration

Nicotinamide is dissolved in normal saline.

DM is induced via a single intraperitoneal (i.p) injection of nicotinamide (110 mg/kg/body weight) dissolved in normal saline 15 min prior to streptozotocin (STZ) (55 mg/kg/body weight) injection, which is dissolved in a freshly prepared 0.1mol/Lcitrate buffer (pH 4.5). These injections are given following an overnight fast. Control rats (n=6) are injected with the same amount of solvent. In order to prevent hypoglycemia in the first 24 h following STZ injection, rats are allowed to have free access to water with 5% dextrose (D5W). Three days after STZ-nicotinamide injection, rats with FBG levels greater than 7.0 mM are considered as diabetic. MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight









4°C, protect from light


Room temperature in continental US; may vary elsewhere

Solvent & Solubility

10 mM in DMSO

* "<1 mg/mL" means slightly soluble or insoluble. "≥" means soluble, but saturation unknown.

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