Chemical Properties of DL-Cystine (CAS 923-32-0)

InChI

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)

InChI Key

LEVWYRKDKASIDU-UHFFFAOYSA-N

Formula

C6H12N2O4S2

SMILES

NC(CSSCC(N)C(=O)O)C(=O)O

Molecular Weight¹

240.30

CAS

923-32-0

Other Names

• Cystine, DL-

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[458.08; 481.31]	J/mol×K	[910.52; 1133.18]
Cp,gas	458.08	J/mol×K	910.52	Joback Calculated Property
Cp,gas	463.72	J/mol×K	947.63	Joback Calculated Property
Cp,gas	468.63	J/mol×K	984.74	Joback Calculated Property
Cp,gas	472.85	J/mol×K	1021.85	Joback Calculated Property
Cp,gas	476.36	J/mol×K	1058.96	Joback Calculated Property
Cp,gas	479.17	J/mol×K	1096.07	Joback Calculated Property
Cp,gas	481.31	J/mol×K	1133.18	Joback Calculated Property

Similar Compounds

Find more compounds similar to DL-Cystine.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

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