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d-leucine 328-38-1

  post date: jan 17,2022
  expiry date: jan 17,2023
  detailed description: cas no. :328-38-1
quantity: 1metric tons
specs:company standard

payment method: t/t
appearance
white fine crystals or white power

specific rotation(20/d)
(c=4 in 6n hcl)
-14.0 to -16.0°degree

state of solution
(transmittance)
clear and colorless
not less than 98.0%

chloride (cl)
not more than 0.020%

heavy metals(pb)
not more than 10ppm

arsenic(as2o3)
not more than 1ppm

other amino acids
chromatographically
not detectable

loss on drying
not more than 0.20%

residue on ignition(sulfated)
not more than 0.10%

assay
99 to100.5%

  cas registry number:

328-38-1

  synonyms: ;2s)-alpha-leucine;(s)-(+)-leucine;(s)-2-amino-4-methylvaleric acid;(s)-leucine;2-amino-4-methylpentanoic acid (l);2-amino-4-methylpentanoic acid, (s)-;2-amino-4-methylvaleric acid (l);4-methyl-norvaline;d-leucine;d-leu;h-d-leucine;h-d-leu-oh;
  molecular formula: c6h13no2
  molecular weight: 131.1729
  molecular structure: 328-38-1 (2s)-2-amino-4-methyl-pentanoic acid

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