Chemical Properties of dl-Cysteine (CAS 3374-22-9)

dl-Cysteine

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InChI
InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
InChI Key
XUJNEKJLAYXESH-UHFFFAOYSA-N
Formula
C3H7NO2S
SMILES
NC(CS)C(=O)O
Molecular Weight1
121.16
CAS
3374-22-9
Other Names
  • Cysteine, L-
  • «beta»-Mercaptoalanine
  • Cystein
  • Cysteine
  • Half-cystine
  • L-(+)-Cysteine
  • L-Alanine, 3-mercapto-
  • NSC-8746
  • Propanoic Acid, 2-amino-3-mercapto-, (R)-
  • Thioserine
  • (R)-2-Amino-3-mercaptopropanoic acid
  • «alpha»-Amino-«beta»-thiolpropionic acid
  • (R)-Cysteine
  • 2-Amino-3-mercaptopropionic acid
  • L-Cys
  • L-HSCH2CH(NH2)COOH
  • Cysteine, DL-
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Physical Properties

Property Value Unit Source
PAff 903.20 kJ/mol NIST
BasG 869.30 kJ/mol NIST
Δcsolid [-2267.70; -2229.00] kJ/mol Show Hide
Δcsolid -2248.84 ± 0.55 kJ/mol NIST
Δcsolid -2267.70 ± 2.10 kJ/mol NIST
Δcsolid -2248.90 ± 2.10 kJ/mol NIST
Δcsolid -2229.00 ± 3.00 kJ/mol NIST
Δf -197.96 kJ/mol Joback Calculated Property
Δfgas -303.07 kJ/mol Joback Calculated Property
Δfsolid [-567.40; -534.08] kJ/mol Show Hide
Δfsolid -534.08 ± 0.62 kJ/mol NIST
Δfsolid -567.40 kJ/mol NIST
Δfus 14.93 kJ/mol Joback Calculated Property
Δvap 62.69 kJ/mol Joback Calculated Property
IE [9.00; 9.50] eV Show Hide
IE 9.50 eV NIST
IE 9.00 eV NIST
log10WS 0.20 Crippen Calculated Property
logPoct/wat -0.672 Crippen Calculated Property
McVol 86.900 ml/mol McGowan Calculated Property
Pc 6696.65 kPa Joback Calculated Property
solid,1 bar 169.90 J/mol×K NIST
Tboil 549.04 K Joback Calculated Property
Tc 760.31 K Joback Calculated Property
Tfus 339.04 K Joback Calculated Property
Vc 0.305 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [187.08; 219.90] J/mol×K [549.04; 760.31] Show Hide
Cp,gas 187.08 J/mol×K 549.04 Joback Calculated Property
Cp,gas 193.43 J/mol×K 584.25 Joback Calculated Property
Cp,gas 199.41 J/mol×K 619.46 Joback Calculated Property
Cp,gas 205.04 J/mol×K 654.67 Joback Calculated Property
Cp,gas 210.32 J/mol×K 689.89 Joback Calculated Property
Cp,gas 215.27 J/mol×K 725.10 Joback Calculated Property
Cp,gas 219.90 J/mol×K 760.31 Joback Calculated Property
Cp,solid 162.30 J/mol×K 297.60 NIST

Similar Compounds

L-Cysteine. S-Methyl-L-cysteine. DL-Cystine. Cystine. l-Cysteine, trimethylsilyl ester. L-Cysteine, N-acetyl-. Cysteine hydrazide. dl-Alanine. Alanine. D-Alanine. ([(2-Amino-2-carboxyethyl)sulfanyl]methyl)cysteine. Cysteine, n-octyl-. 3-Fluoroalanine. dl-2-Aminobutyric acid. Serine.

Find more compounds similar to dl-Cysteine.

Sources

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