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53319 Sigma

L-Histidine

BioUltra, ≥99.5% (NT)

Synonym: (S)-2-Amino-3-(4-imidazolyl)propionic acid, NSC 137773

  • CAS Number 71-00-1

  • Empirical Formula (Hill Notation) C6H9N3O2

  • Molecular Weight 155.15

  •  Beilstein Registry Number 84088

  •  EC Number 200-745-3

  •  MDL number MFCD00064315

  •  PubChem Substance ID 57651378

  •  eCl@ss 32160406

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Properties

Related Categories Allium cepa (Onion), Allium sativum (Garlic), Aloe Vera, Amino Acids, Amino acids,
InChI Key   HNDVDQJCIGZPNO-YFKPBYRVSA-N
product line   BioUltra
assay   ≥99.5% (NT)
optical activity   [α]20/D −39±1°, c = 2% in H2O
impurities   insoluble matter, passes filter test
  ≤0.5% foreign amino acids
ign. residue   ≤0.1% (as SO4)
loss   ≤0.5% loss on drying, 110 °C
pH   7.0-8.0 (25 °C, 0.1 M in H2O)
mp   282 °C (dec.)(lit.)
  ~285 °C (dec.)
solubility   H2O: 0.1 M at 20 °C clear, colorless
anion traces   chloride (Cl-): ≤100 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  NH4+: ≤500 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   0.1 M in H2O
UV absorption   λ: 260 nm Amax: 0.05
  λ: 280 nm Amax: 0.05
Gene Information   human ... CA1(759), CA2(760)

Description

Biochem/physiol Actions

Precursor of histamine by action of histidine decarboxylase.

Other Notes

Amino acid spacing in isotachophoresis on polyacrylamide gels - a critical evaluation; Prevents circular DNA strand cleavage in a xanthine-xanthine oxidase system; Growth requirement of various microorganisms.

Price and Availability


Laboratory Gloves

All labs need water
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
MS3070000

Documents

Certificate of Analysis

Protocols & Articles

Related Content

Amino Acids Reference Chart

The hydrophobicity index is a measure of the relative hydrophobicity, or how soluble an amino acid is in water. In a protein, hydrophobic amino acids are likely to be found in the interior, whereas h...

Peer-Reviewed Papers
15

References

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