Product Name

  • Name

    Ribonuclease A

  • EINECS 232-646-6
  • CAS No. 9001-99-4
  • Density
  • Solubility Soluble in water.
  • Melting Point 243 °C (dec.)
  • Formula C9H14N4O3
  • Boiling Point
  • Molecular Weight 226.23246
  • Flash Point
  • Transport Information
  • Appearance White to white with a yellow cast powder
  • Safety 22-24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 9001-99-4 (Ribonuclease A)
  • Hazard Symbols
  • Synonyms Ribonuclease
  • PSA 0.00000
  • LogP 0.00000

Ribonuclease A Chemical Properties

Molecular Formula: C9H14N4O3
Molecular Weight: 226.2325
EINECS: 207-332-7
Density: 1.375 g/cm3
Melting Point: 243 °C (dec.)
Flash Point: 350.7 °C
Boiling Point: 656.2 °C at 760 mmHg
Vapour Pressure: 4.08E-18 mmHg at 25 °C 
Enthalpy of Vaporization: 101.53 kJ/mol
Storage temp.: 2-8 °C
Structure of Ribonuclease A (CAS NO.9001-99-4):
                      
IUPAC Name: 2-(3-Aminopropanoylamino)-3-(1H-imidazol-5-yl)propanoic acid
Canonical SMILES: C1=C(NC=N1)CC(C(=O)O)NC(=O)CCN
InChI: InChI=1S/C9H14N4O3/c10-2-1-8(14)13-7(9(15)16)3-6-4-11-5-12-6/h4-5,7H,1-3,10H2,(H,11,12)(H,13,14)(H,15,16)
InChIKey: CQOVPNPJLQNMDC-UHFFFAOYSA-N

Ribonuclease A History

The importance of bovine pancreatic Ribonuclease A (CAS NO.9001-99-4) was secured when the Armour & Co. (of hot dog fame) purified a kilogram of it, and gave 10 mg samples away free to any interested scientists. The ability to have a single lot of purified enzyme instantly made RNase the model system for protein studies.Ribonuclease-S, which is RNase A that has been treated with subtilisin, was the third protein to have its structure solved, in 1967. Studies of the oxidative folding of RNase A led Chris Anfinsen to enunciate the thermodynamic hypothesis of protein folding, which states that the folded form of a protein represents the minimum of its free energy.

Ribonuclease A Uses

 Ribonuclease A (CAS NO.9001-99-4) is used for biochemical research.

Ribonuclease A Production

 Ribonuclease A (CAS NO.9001-99-4) can be obtained from the fermentation broth of the grate produced by erythromycin.

Ribonuclease A Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intramuscular 355mg/kg (355mg/kg)   "Nukleazy: Biologicheskaya Rol i Prakticheskoe Ispol'zovanie. Nucleases: Biological Function and Practical Applications," Berdyshev, G.D., et al., eds., Kiev, USSR, Izdatel'stvo Naukova Dumka, 1985Vol. -, Pg. 56, 1985.
mouse LD50 intraperitoneal 250mg/kg (250mg/kg)   "Nukleazy: Biologicheskaya Rol i Prakticheskoe Ispol'zovanie. Nucleases: Biological Function and Practical Applications," Berdyshev, G.D., et al., eds., Kiev, USSR, Izdatel'stvo Naukova Dumka, 1985Vol. -, Pg. 56, 1985.
mouse LD50 subcutaneous 230mg/kg (230mg/kg)   "Nukleazy: Biologicheskaya Rol i Prakticheskoe Ispol'zovanie. Nucleases: Biological Function and Practical Applications," Berdyshev, G.D., et al., eds., Kiev, USSR, Izdatel'stvo Naukova Dumka, 1985Vol. -, Pg. 56, 1985.
rat LD50 intramuscular 310mg/kg (310mg/kg)   "Nukleazy: Biologicheskaya Rol i Prakticheskoe Ispol'zovanie. Nucleases: Biological Function and Practical Applications," Berdyshev, G.D., et al., eds., Kiev, USSR, Izdatel'stvo Naukova Dumka, 1985Vol. -, Pg. 56, 1985.
rat LD50 intraperitoneal 392mg/kg (392mg/kg)   "Nukleazy: Biologicheskaya Rol i Prakticheskoe Ispol'zovanie. Nucleases: Biological Function and Practical Applications," Berdyshev, G.D., et al., eds., Kiev, USSR, Izdatel'stvo Naukova Dumka, 1985Vol. -, Pg. 56, 1985.
rat LD50 subcutaneous 290mg/kg (290mg/kg)   "Nukleazy: Biologicheskaya Rol i Prakticheskoe Ispol'zovanie. Nucleases: Biological Function and Practical Applications," Berdyshev, G.D., et al., eds., Kiev, USSR, Izdatel'stvo Naukova Dumka, 1985Vol. -, Pg. 56, 1985.

Ribonuclease A Safety Profile

Safety Statements:
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes.
WGK Germany: 3
RTECS: RF0760000
F 10: Keep under argon.
F 21: Sensitive to humidity.

Ribonuclease A Specification

 Ribonuclease A , its cas register number is 9001-99-4. It also can be called Alkaline ribonuclease ; Amphinase ; Pancreatic ribonuclease ; RNase; Ribonuclease ; S-RNase ; and Ribonucleic phosphatase .

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