30199
L -Cystine
BioUltra, ≥99.5% (T)
Synonym(s):
(R,R)-3,3′-Dithiobis(2-aminopropionic acid)
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About This Item
product line
BioUltra
assay
≥99.5% (T)
form
powder or crystals
optical activity
[α]20/D −219±5°, c = 1% in 1 M HCl
impurities
insoluble matter, passes filter test, ≤0.3% foreign amino acids
ign. residue
≤0.05% (as SO4)
loss
≤0.05% loss on drying, 20 °C (HV)
color
white
mp
>240 °C (dec.) (lit.)
solubility
1 M HCl: 0.2 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤500 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: ≤10 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
absorption
cut-off at 316 nm in 1 M HCl at 0.2 M
SMILES string
N[C@@H](CSSC[C@H](N)C(O)=O)C(O)=O
InChI
1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
InChI key
LEVWYRKDKASIDU-IMJSIDKUSA-N
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Storage Class
11 - Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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