2. Isotope-Labeled Compounds
  3. Internal Standard for Food

Internal Standard for Food

Food safety issues have become a global topic, and vicious food safety incidents continue to occur internationally, causing huge economic losses. Food safety testing has now become one of the hot topics of concern in various countries. Currently, the most advanced method for food safety testing in the world is isotope dilution mass spectrometry. This method uses stable isotope-labeled compounds (13C, 15N, 2H, etc.) which with the same molecular structure as the analytes as internal standards. Through quantitative mold detection with high-end instruments such as LC-MS and LC-MS/MS, the content of harmful substances in food can be accurately quantified to ensure the safety of food on the market[1].

 

References:

Internal Standard for Food (1157):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-N0390S1
    L-Glutamine-13C5 184161-19-1 99.93%
    L-Glutamine-13C5 is the 13C-labeled L-Glutamine (HY-N0390). L-Glutamine is an orally active nutritional agent and cellular metabolism regulator. L-Glutamine is taken up in a Na+-dependent manner and targets multiple key molecules including glutaminase, mTORC1, NF-κB, STAT-3 and HIF-1α. L-Glutamine enhances glutaminolytic catabolism, drives the conversion of glutamate to α-ketoglutarate, thereby regulating gene expression, integrating metabolic signals, mediating glutamine flux and maintaining redox homeostasis. L-Glutamine also promotes cell proliferation, osteogenic differentiation and fracture healing, exerts neuroprotective and cardioprotective effects, and inhibits osteoarthritis. L-Glutamine can be applied to research related to osteoporosis, osteoarthritis, ischemic stroke and acute cantharidin-induced cardiotoxicity.
    L-Glutamine-<sup>13</sup>C<sub>5</sub>
  • HY-Y0479S
    L-Lactic acid-13C3 87684-87-5 99.9%
    L-Lactic acid-13C3 is a 13C-labeled L-Lactic acid (HY-Y0479). L-Lactic acid-13C3 can be used for lactate metabolism research.
    L-Lactic acid-<sup>13</sup>C<sub>3</sub>
  • HY-N0623S
    L-Tryptophan-d5 62595-11-3 99.94%
    L-Tryptophan-d5 is the deuterium labeled L-Tryptophan. L-Tryptophan (Tryptophan) is an essential amino acid that is the precursor of serotonin, melatonin, and vitamin B3.
    L-Tryptophan-d<sub>5</sub>
  • HY-108872S
    Water-18O 14314-42-2 99.99%
    Water-18O is the 18O-labeled Water.
    Water-<sup>18</sup>O
  • HY-N1446S2
    Oleic acid-13C18 287100-82-7 99.90%
    Oleic acid-13C18 is the 13C labeled Oleic acid (HY-N1446). Oleic acid (9-cis-Octadecenoic acid) is an abundant monounsaturated fatty acid. Oleic acid is a Na+/K+ ATPase activator.
    Oleic acid-<sup>13</sup>C<sub>18</sub>
  • HY-B1773AS2
    Sodium propionate-13C2 83587-75-1
    Sodium propionate-13C-2 is the 13C-labeled Propionate sodium (HY-B1773A). Sodium propionate is an orally active short-chain fatty acid. Sodium propionate can be produced by intestinal bacteria from the metabolism of dietary fiber. Sodium propionate increases PPAR-γ, inhibits NF-κB activation, and reduces COX-2 expression and NO production. Sodium propionate also induces Apoptosis and Autophagy. Sodium propionate reduces HSV-1-induced keratitis. Sodium propionate has anticancer effects against glioblastoma. Sodium propionate exhibits neuroprotective, antioxidant, and anti-inflammatory activities. Sodium propionate can be used in the research of spinal cord injury and Alzheimer's disease.
    Sodium propionate-<sup>13</sup>C<sub>2</sub>
  • HY-14930S
    Mirodenafil-d7 1329651-11-7
    Mirodenafil-d7 (SK3530-d7) is the deuterium labeled Mirodenafil (HY-14930). Mirodenafil (SK3530) is an orally active, potent, reversible, and selective?phosphodiesterase?5 (PDE5)?inhibitor. Mirodenafil is a?glucocorticoid receptor?(GR)?modulator Mirodenafil activates the?Wnt/β-catenin?signaling pathway by downregulating Dkk1 expression. Mirodenafil can be used for the research of erectile dysfunction (ED), Alzheimer’s disease (AD) and systemic sclerosis (SSc).
    Mirodenafil-d<sub>7</sub>
  • HY-117660S1
    Lincomycin-13C,d3
    Lincomycin-13C,d3 (U-10149-13C,d3) is the deuterium and 13C-labeled Lincomycin (HY-117660). Lincomycin (U-10149) is an orally active lincosamide antibiotic. Lincomycin binds to the ribosomes of Gram-positive bacteria to inhibit protein synthesis. Lincomycin can inhibit chloroplast translation, disrupt chloroplast integrity, and activate chloroplast-to-nucleus retrograde signaling in Arabidopsis thaliana seedlings. Lincomycin induces alterations in lipid profiles and liver injury, disrupts blood glucose and insulin levels, and increases growth rate in mice.
    Lincomycin-<sup>13</sup>C,d<sub>3</sub>
  • HY-W013636S
    2-Ketoglutaric acid-13C5 161096-83-9 99.92%
    2-Ketoglutaric acid-13C5 (Alpha-Ketoglutaric acid-13C5) is a 13C labeled 2-Ketoglutaric acid (HY-W013636). 2-Ketoglutaric acid (Alpha-Ketoglutaric acid) is an intermediate in the production of ATP or GTP in the Krebs cycle. 2-Ketoglutaric acid also acts as the major carbon skeleton for nitrogen-assimilatory reactions. 2-Ketoglutaric acid is a reversible inhibitor of tyrosinase (IC50=15 mM).
    2-Ketoglutaric acid-<sup>13</sup>C<sub>5</sub>
  • HY-18569S
    3-Indoleacetic acid-d5 76937-78-5 99.76%
    3-Indoleacetic acid-d5 is the deuterium labeled 3-Indoleacetic acid (HY-18569). 3-Indoleacetic acid-d5 can be used as internal standard for assay of IAA releases by alkaline hydrolysis of ester and amide conjugates.
    3-Indoleacetic acid-d<sub>5</sub>
  • HY-N0650S
    L-Serine-13C3 201595-68-8 99.95%
    L-Serine-13C3 is the 13C-labeled L-Serine. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.
    L-Serine-<sup>13</sup>C<sub>3</sub>
  • HY-N0390S
    L-Glutamine-15N 80143-57-3 99.6%
    L-Glutamine-15N is the 15N-labeled L-Glutamine (HY-N0390). L-Glutamine is an orally active nutritional agent and cellular metabolism regulator. L-Glutamine is taken up in a Na+-dependent manner and targets multiple key molecules including glutaminase, mTORC1, NF-κB, STAT-3 and HIF-1α. L-Glutamine enhances glutaminolytic catabolism, drives the conversion of glutamate to α-ketoglutarate, thereby regulating gene expression, integrating metabolic signals, mediating glutamine flux and maintaining redox homeostasis. L-Glutamine also promotes cell proliferation, osteogenic differentiation and fracture healing, exerts neuroprotective and cardioprotective effects, and inhibits osteoarthritis. L-Glutamine can be applied to research related to osteoporosis, osteoarthritis, ischemic stroke and acute cantharidin-induced cardiotoxicity.
    L-Glutamine-<sup>15</sup>N
  • HY-B0150S
    Nicotinamide-d4 347841-88-7 99.97%
    Nicotinamide-d4 is the deuterium labeled Nicotinamide. Nicotinamide is a form of vitamin B3 that plays essential roles in cell physiology through facilitating NAD+ redox homeostasis and providing NAD+ as a substrate to a class of enzymes that catalyze non-redox reactions. Nicotinamide is an inhibitor of SIRT1.
    Nicotinamide-d<sub>4</sub>
  • HY-B1473AS
    Serotonin-d4 58264-95-2 99.61%
    Serotonin-d4 is deuterium labeled Serotonin. Serotonin is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM.
    Serotonin-d<sub>4</sub>
  • HY-N0623S2
    L-Tryptophan-13C11 202114-65-6 99.80%
    L-Tryptophan-13C11 is the 13C-labeled L-Tryptophan. L-Tryptophan (Tryptophan) is an essential amino acid that is the precursor of serotonin, melatonin, and vitamin B3.
    L-Tryptophan-<sup>13</sup>C<sub>11</sub>
  • HY-N1428S1
    Citric acid-13C6 287389-42-8 99.90%
    Citric acid-13C6 is the 13C-labeled Citric acid (HY-N1428). Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid is also an acidulant, emulsifier, sequestrant and buffering agent widely used across many industries.
    Citric acid-<sup>13</sup>C<sub>6</sub>
  • HY-N0470S3
    L-Lysine-13C6,15N2 hydrochloride 1200447-00-2 99.87%
    L-Lysine-13C6,15N2 (hydrochloride) is the 13C- and 15N-labeled L-Lysine hydrochloride. L-lysine hydrochloride is an essential amino acid for humans with various benefits including treating herpes, increasing calcium absorption, reducing diabetes-related illnesses and improving gut health.
    L-Lysine-<sup>13</sup>C<sub>6</sub>,<sup>15</sup>N<sub>2</sub> hydrochloride
  • HY-100807S
    Quinolinic acid-d3 138946-42-6 99.90%
    Quinolinic acid-d3 is the deuterium labeled Quinolinic acid. Quinolinic acid, an endogenous metabolite of tryptophan, is a N-methyl-D-aspartate receptor (NMDA receptor) agonist. Quinolinic acid increases glutamate efflux, induces the generation of ROS, activates nitric oxide synthase, produces excessive NO, leading to calcium ion influx and neuronal apoptosis.
    Quinolinic acid-d<sub>3</sub>
  • HY-14608S3
    L-Glutamic acid-13C5,15N 202468-31-3 99.9%
    L-Glutamic acid-13C5,15N is the 13C- and 15N-labeled L-Glutamic acid. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals.
    L-Glutamic acid-<sup>13</sup>C<sub>5</sub>,<sup>15</sup>N
  • HY-N0729S2
    Linoleic acid-13C18 287111-25-5 99.10%
    Linoleic acid-13C18 is the 13C labeled Linoleic acid. Linoleic acid is a common polyunsaturated (PUFA) found in plant-based oils, nuts and seeds. Linoleic acid is a part of membrane phospholipids, and functions as a structural component to maintain a certain level of membrane fluidity of the transdermal water barrier of the epidermis. Linoleic acid induces red blood cells and hemoglobin damage via oxidative mechanism .
    Linoleic acid-<sup>13</sup>C<sub>18</sub>