Solid phase
Official name
Se-methylselenocysteine
Secondary names
Se-(Methyl)seleno-L-cysteine; Se-Methyl-L-selenocysteine; Se-Methyl-seleno-L-cysteine; 3-(Methylseleno)-L-alanine; Selenium-methylselenocystine; Selenomethylselenocysteine; L-Alanine, 3-(methylseleno)-; (R)-2-Amino-3-(methylselanyl)propanoic acid; C4H9NO2Se; Se-MSC
CAS number
26046-90-2
Type
Family
molecular solid
Class
non polar molecular solid
Compound type
inorganic molecular solid
Chemical composition
Formula
$CH_3SeCH_2C(NH_2)COOH$
Chemical formula
CH3Se(CH2)2NH2COOH
Elemental formula
C4 H9 N O2 Se
Isotope mixture type
terrestrial abundance
2.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$CH_3SeCH_2C(NH_2)COOH$ Se-methylselenocysteine molecule 1 1.0 1 constituent molecular main
Chemical functions
  Function Number
$R-CH_3$ 1
$R-CH_2-R$ 1
$R-NH_2$ 1
$R-C(=O)-OH$ 1
Chemical bonds
  Bond Number
$\geq C-H$ 5
$\geq C-Se-$ 2
$\geq C-C \leq$ 1
$\eqslantgtr C-C\leq$ 1
$\geq C-N<$ 1
$>N-H$ 2
$>Se=O$ 1
$>C=O$ 1
$\eqslantgtr C-O-$ 1
$-O-H$ 1
Class
molecular solids with polar molecules (02)
Type
with polyatomic organic polar molecules (CnHm...) (02.01)
Phase type
crystalline
Crystal system
unknown
Crystal class
unknown
Crystal class symbol
unknown
Crystal spacegroup
unknown
Molar mass
182.08 $g/mol$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid 177°C (450 K)
Pure color
colorless
Color
colorless, white, yellowish
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