l-leucine 61-90-5
Date：2021-12-01 Categories：Related Application Product
| post date: |
nov 30,2021 |
| expiry date: |
nov 30,2022 |
| detailed description: |
cas no. :61-90-5
payment method: t/t
product name: h-leu-oh
cas#: 61-90-5
synonyms: l-leucine
molecular formula: c6h13no2
molecular weight: 131.17
reference standard: aji92
specifications:
item
standard
appearance
white crystals or crystalline powder
specific rotation[α]20/d
(c=4 in 6n hcl)
+14.9 to +16.0°
state of solution
(transmittance)
clear and colorless
not less than 98.0%
chloride (cl)
not more than 0.020%
ammonium (nh4)
not more than 0.02%
sulfate (so4)
not more than 0.020%
iron (fe)
not more than 10ppm
heavy metal(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
98.5 to100.5%
ph
5.5 to 6.5 |
| cas registry number: |
61-90-5
|
| synonyms: |
;(s)-2-amino-4-methylpentanoic acid;h-leu-oh;l-leu;l(+)leucine;leucine; |
| molecular formula: |
c6h13no2 |
| molecular weight: |
131.17 |
| molecular structure: |
|
| safety description: |
s24/25:; |
