ChemicalBook > CAS DataBase List > MICROCYSTIN-LR

MICROCYSTIN-LR

Product Name
MICROCYSTIN-LR
CAS No.
101043-37-2
Chemical Name
MICROCYSTIN-LR
Synonyms
MC-LR;Microcystin-LR solution,Cyanoginosin, Fast-death factor;C05371;MCYST-LR;akerstox;toxin-lr;microcystin-a;MICROCYSTIN-LR;CYANOGINOSIN-LR;Microcystin LR 95%
CBNumber
CB9463679
Molecular Formula
C49H74N10O12
Formula Weight
995.17
MOL File
101043-37-2.mol
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MICROCYSTIN-LR Property

Density 
1.29±0.1 g/cm3(Predicted)
Flash point:
11 °C
storage temp. 
−20°C
solubility 
ethanol: 1 mg/mL
form 
solid film
pka
3.03±0.70(Predicted)
color 
Off-white
Stability:
Stable for 1 year from date of purchase as supplied. Solutions in DMSO, methanol or ethanol may be stored at -20°C for up to 2 months.
IARC
2B (Vol. 94) 2010
EPA Substance Registry System
Microcystin LR (101043-37-2)
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Safety

Hazard Codes 
T+,T,F
Risk Statements 
26/27/28-36/37/38-43-39/23/24/25-23/24/25-11
Safety Statements 
26-36/37/39-45-36/37-16-7
RIDADR 
UN 2811 6.1/PG 1
WGK Germany 
3
RTECS 
GT2810000
HS Code 
30029090
Hazardous Substances Data
101043-37-2(Hazardous Substances Data)
Toxicity
LD50 orl-rat: >5 mg/kg HETOEA 18,162,1999
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P262Do not get in eyes, on skin, or on clothing.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
33893
Product name
Microcystin-LR solution
Purity
10?μg/mL in methanol, analytical standard
Packaging
1mL
Price
$464
Updated
2024/03/01
Cayman Chemical
Product number
10007188
Product name
Microcystin-LR
Purity
≥95%
Packaging
100μg
Price
$68
Updated
2024/03/01
Cayman Chemical
Product number
10007188
Product name
Microcystin-LR
Purity
≥95%
Packaging
50μg
Price
$29
Updated
2021/12/16
Cayman Chemical
Product number
10007188
Product name
Microcystin-LR
Purity
≥95%
Packaging
500μg
Price
$286
Updated
2024/03/01
Cayman Chemical
Product number
10007188
Product name
Microcystin-LR
Purity
≥95%
Packaging
1mg
Price
$502
Updated
2024/03/01
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MICROCYSTIN-LR Chemical Properties,Usage,Production

Description

Microcystins are hepatotoxic cyclic heptapeptide toxins produced by cyanobacteria. They are responsible for periodic poisonings of humans and livestock drinking fresh water where the blue-green algae are endemic. Microcystin-LR is a selective inhibitor of protein phosphatase 2A (PP2A) (IC50= 0.04 nM) and will completely inhibit this enzyme without affecting PP1 when used at a concentration of 0.5 nM. The PP1 IC50 is about 1.7 nM. Microcystins are at least 10 times more potent as serine/threonine PP inhibitors than okadaic acid, another microalgal toxin also used for this purpose.

Definition

ChEBI: Microcystin-LR is a microcystin consisting of D-alanyl, L-leucyl, (3S)-3-methyl-D-beta-aspartyl,L-arginyl, 2S,3S,4E,6E,8S,9S)-3-amino-4,5,6,7-tetradehydro-9-methoxy-2,6,8-trimethyl-10-phenyldecanoyl, D-gamma-glutamyl, and 2,3-didehydro-N-methylalanyl residues joined into a 25-membered macrocycle. Produced by the cyanobacterium Microcystis aeruginosa, it is the most studied of the microcystins. It has a role as a bacterial metabolite, an EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor, a xenobiotic and an environmental contaminant.

Hazard

A poison by ingestion and inhalation.

Safety Profile

A poison by ingestion, inhalation,intraperitoneal, and intravenous route. Experimentalreproductive effects. When heated to decomposition itemits toxic vapors of NOx.

References

1) Rinehart?et al.?(1988),?Nodularin, microcystin, and the configuration of Adda; J. Am. Chem. Soc.,?110?8557 2) Honkanen?et al. (1990),?Characterization of microcystin-LR, a potent inhibitor of type 1 and type 2A protein phosphatases;?J. Biol. Chem,?265?19401 3) Runnegar?et al.?(1995),?Microcystin uptake and inhibition of protein phosphatases: effects of chemoprotectants and self-inhibition in relation to known hepatic transporters; Toxicol. Appl. Pharmacol.,?134?264

MICROCYSTIN-LR Preparation Products And Raw materials

Raw materials

Preparation Products

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101043-37-2, MICROCYSTIN-LRRelated Search:


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  • 5-l-argininecyanoginosinla
  • MCYST-LR
  • 5-L-ARGININE-MICROCYSTIN LA
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  • cyclo[2,3-didehydro-N-methylalanyl-D-alanyl-L-leucyl-(3S)-3-methyl-D-β-aspartyl-L-arginyl-(2S,3S,4E,6E,8S,9S)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyl-4,6-decadienoyl-D-γ-glutamyl]
  • CYANOGINOSIN-LR;MC-LR
  • MC-LR
  • akerstox
  • microcystin-a
  • microcystisaeruginosatoxin
  • toxin,bluegreenalga,microcystisaeruginosa
  • toxini(microcystisaeruginosa)
  • toxin-lr
  • toxint17(microcystisaeruginosa)
  • Microcystin LR Solution in Methanol,10μg/mL
  • cyclo[2,3-didehydro-N-methylalanyl-D-alanyl-L-leucyl-(3S)-3-methyl-D-β-aspartyl-L-arginyl-(2S,3S,4E,6E,8S,9S)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyl-4,6-decadienoyl-D-γ-glutamyl
  • (5R,8S,11R,12S,15S,18S,19S,22R)-15-(3-guanidinopropyl)-8-isobutyl-18-((1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenylhepta-1,3-dien-1-yl)-1,5,12,19-tetramethyl-2-methylene-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptaazacyclopentacosane-11,22-dicarboxylic acid
  • (5R,8S,11R,12S,15S,18S,19S,22R)-15-(3-guanidinopropyl)-8-isobutyl-18-((1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenylhepta-1,3-dien-1-yl)-1,5,12,19-tetramethyl-2-methylene-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptaazacyclopentacosane-11,22-dicarboxy
  • Microcystin-LR Standard Solution
  • 101043-37-2
  • C49H74N10O12
  • Kinase/Phosphatase Biology
  • Protein Phosphatase 1 (PP1)
  • Serine/Threonine Phosphatase Inhibitors
  • BioChemical
  • Cell Biology
  • Cell Signaling and Neuroscience
  • Natural Products