Name | Pepstatin A |
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Synonyms |
N-Isovaleryl-L-valyl-L-valyl-3-hydroxy-6-methyl-γ-aminoheptanoyl-L-alanyl-3-hydroxy-6-methyl-γ-aminoheptanoic acid
N-(3-Methylbutanoyl)-L-valyl-N-[(3S,4S)-1-{[(2S)-1-{[(2S,3S)-1-carboxy-2-hydroxy-5-methyl-3-hexanyl]amino}-1-oxo-2-propanyl]amino}-3-hydroxy-6-methyl-1-oxo-4-heptanyl]-L-valinamide Pepstatin A Pepstatin (USAN) L-Valinamide, N-(3-methyl-1-oxobutyl)-L-valyl-N-[(1S,2S)-4-[[(1S)-2-[[(1S)-1-[(1S)-2-carboxy-1-hydroxyethyl]-3-methylbutyl]amino]-1-methyl-2-oxoethyl]amino]-2-hydroxy-1-(2-methylpropyl)-4-oxobutyl]- pepsininhibitors735a IHN peptistatin A EINECS 247-600-0 Procidin S 735A procidins735a PEPSTATIN ahpatininc ahpatinin C pepstatine A Iva-Val-Val-Sta-Ala-Sta-OH PepstainA IVA-VAL-VAL-STA-ALA-STA N-(3-Methylbutanoyl)-L-valyl-N-[(3S,4S)-1-{[(2S)-1-{[(2S,3S)-1-carboxy-2-hydroxy-5-methylhexan-3-yl]amino}-1-oxopropan-2-yl]amino}-3-hydroxy-6-methyl-1-oxoheptan-4-yl]-L-valinamide MFCD00060740 N-Isovaleryl-L-valyl-L-valyl-3-hydroxy-6-methyl-g-aminoheptanoyl-L-alanyl-3-hydroxy-6-methyl-g-aminoheptanoic Acid PEPSTATIN A SYNTHETIC Isovalerylpepstatin N-(3-Methyl-1-oxobutyl)-L-valyl-(3S,4S)-4-amino-3-hydroxy-6-methylheptanoyl-N-((1S)-1-((1S)-2-carboxy-1-hydroxyethyl)-3-methylbutyl)-L-alaninamide |
Description | Pepstatin is a specific aspartic protease inhibitor produced by actinomycetes, with IC50s of 4.5 nM, 6.2 nM, 150 nM, 290 nM, 520 nM and 260 nM for hemoglobin-pepsin, hemoglobin-proctase, casein-pepsin, casein-proctase, casein-acid protease and hemoglobin-acid protease, respectively. Pepstatin Ammonium also inhibits HIV protease. |
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Related Catalog | |
Target |
IC50: 4.5 nM (Hemoglobin-pepsin), 6.2 nM (Hemoglobin-proctase), 150 nM (Casein-pepsin), 260 nM (Hemoglobin-acid protease), 290 nM (Casein-proctase), 520 nM (Casein-acid protease)[1] |
In Vitro | Pepstatin is a specific acid protease inhibitor produced by actinomycetes, with IC50s of 4.5 nM, 6.2 nM, 150 nM, 290 nM, 520 nM and 260 nM for hemoglobin-pepsin, hemoglobin-proctase, casein-pepsin, casein-proctase, casein-acid protease and hemoglobin-acid protease, respectively[1]. Pepstatin (Pepstatin A) inhibits the recombinant HIV protease with an IC50 of 250 μM. Pepstatin shows no effect on cellular protein synthesis and probably does not exert severe cell toxicity[2]. |
In Vivo | Pepstatin has a very low toxicity, with LD50s of 1090 mg/kg, 875 mg/kg, 820 mg/kg and 450 mg/kg for mice, rats, rabbits, and dogs by i.p. route, and > 2000 mg/kg for all species by oral route. Pepstatin (0.5-50 mg/kg, p.o.) suppresses stomach ulceration of the pylorus in ligated Shay rats[1]. |
Cell Assay | Pepstatin A is freshly dissolved in DMSO at 7 mM. It is very slowly diluted (1:100) into the medium of HIV-infected H9 suspension cultures so that no pepstatin A precipitated (final concentration, 70 μM pepstatin A and 1% DMSO), and the cultures are incubated without change of culture medium for 48 hr. As control, uninfected H9 cells are also incubated with pepstatin and in addition HIV infected and uninfected cells are incubated with 1% DMSO but without pepstatin[2]. |
References |
Density | 1.1±0.1 g/cm3 |
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Boiling Point | 997.6±65.0 °C at 760 mmHg |
Melting Point | 233 °C (dec.)(lit.) |
Molecular Formula | C34H63N5O9 |
Molecular Weight | 685.892 |
Flash Point | 557.1±34.3 °C |
Exact Mass | 685.462585 |
PSA | 223.26000 |
LogP | 2.16 |
Vapour Pressure | 0.0±0.6 mmHg at 25°C |
Index of Refraction | 1.504 |
Storage condition | 2-8°C |
Stability | Stable. Incompatible with strong bases, strong acids. |
Water Solubility | 10% acetic acid in methanol: 1 mg/mL |
SECTION 1: Identification of the substance/mixture and of the company/undertaking Product identifiers Product name: Pepstatin A REACH No.: A registration number is not available for this substance as the substance or its uses are exempted from registration, the annual tonnage does not require a registration or the registration is envisaged for a later registration deadline.
CAS-No.: 26305-03-3 Relevant identified uses of the substance or mixture and uses advised against Identified uses: Laboratory chemicals, Manufacture of substances SECTION 2: Hazards identification Classification of the substance or mixture Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008. This substance is not classified as dangerous according to Directive 67/548/EEC. Label elements The product does not need to be labelled in accordance with EC directives or respective national laws. Other hazards - none SECTION 3: Composition/information on ingredients Substances Formula: C34H63N5O9 C34H63N5O9 Molecular Weight: 685,89 g/mol CAS-No.: 26305-03-3 EC-No.: 247-600-0 No components need to be disclosed according to the applicable regulations. SECTION 4: First aid measures Description of first aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Flush eyes with water as a precaution. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. Most important symptoms and effects, both acute and delayed The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11 Indication of any immediate medical attention and special treatment needed no data available SECTION 5: Firefighting measures Extinguishing media Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Special hazards arising from the substance or mixture Carbon oxides, nitrogen oxides (NOx) Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information no data available SECTION 6: Accidental release measures Personal precautions, protective equipment and emergency procedures Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Avoid breathing dust. For personal protection see section 8. Environmental precautions Do not let product enter drains. Methods and materials for containment and cleaning up Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal. Reference to other sections For disposal see section 13. SECTION 7: Handling and storage Precautions for safe handling Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Recommended storage temperature: 2 - 8 °C Specific end use(s) Apart from the uses mentioned in section 1.2 no other specific uses are stipulated SECTION 8: Exposure controls/personal protection Control parameters Components with workplace control parameters Exposure controls Appropriate engineering controls Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Personal protective equipment Eye/face protection Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Body Protection Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Control of environmental exposure Do not let product enter drains. SECTION 9: Physical and chemical properties Information on basic physical and chemical properties a) AppearanceForm: solid b) Odourno data available c) Odour Thresholdno data available d) pHno data available e) Melting point/freezingMelting point/range: 233 °C point f) Initial boiling point and no data available boiling range g) Flash pointno data available h) Evapouration rateno data available i) Flammability (solid, gas) no data available j) Upper/lowerno data available flammability or explosive limits k) Vapour pressureno data available l) Vapour densityno data available m) Relative densityno data available n) Water solubilityno data available o) Partition coefficient: n- no data available octanol/water p) Auto-ignitionno data available temperature q) Decompositionno data available temperature r) Viscosityno data available s) Explosive propertiesno data available t) Oxidizing propertiesno data available Other safety information no data available SECTION 10: Stability and reactivity Reactivity no data available Chemical stability Stable under recommended storage conditions. Possibility of hazardous reactions no data available Conditions to avoid no data available Incompatible materials Strong acids, Strong bases Hazardous decomposition products Other decomposition products - no data available In the event of fire: see section 5 SECTION 11: Toxicological information Information on toxicological effects Acute toxicity LD50 Oral - rat - > 2.000 mg/kg Skin corrosion/irritation no data available Serious eye damage/eye irritation no data available Respiratory or skin sensitisation no data available Germ cell mutagenicity no data available Carcinogenicity IARC:No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. Reproductive toxicity no data available Specific target organ toxicity - single exposure no data available Specific target organ toxicity - repeated exposure no data available Aspiration hazard no data available Additional Information RTECS: SC6155000 To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated. SECTION 12: Ecological information Toxicity no data available Persistence and degradability no data available Bioaccumulative potential no data available Mobility in soil no data available Results of PBT and vPvB assessment PBT/vPvB assessment not available as chemical safety assessment not required/not conducted Other adverse effects no data available SECTION 13: Disposal considerations Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. Contaminated packaging Dispose of as unused product. SECTION 14: Transport information UN number ADR/RID: -IMDG: -IATA: - UN proper shipping name ADR/RID: Not dangerous goods IMDG: Not dangerous goods IATA:Not dangerous goods Transport hazard class(es) ADR/RID: -IMDG: -IATA: - Packaging group ADR/RID: -IMDG: -IATA: - Environmental hazards ADR/RID: noIMDG Marine pollutant: noIATA: no Special precautions for user no data available SECTION 15 - REGULATORY INFORMATION N/A SECTION 16 - ADDITIONAL INFORMATION N/A |
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
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Personal Protective Equipment | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
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Safety Phrases | S22-S24/25 |
RIDADR | NONH for all modes of transport |
WGK Germany | 2 |
RTECS | SC6155000 |