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(-)-Thyroxine

CAS: 51-48-9 | C15H11I4NO4

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 51-48-9
Molecular Formula: C15H11I4NO4
Molecular Mass: 776.87 g/mol

Names and Synonyms:

(-)-Thyroxine
L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-
Thyroxine, L-
O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine
Thyroxine
Tetraiodothyronine
L-Thyroxine
3,3′,5,5′-Tetraiodo-L-thyronine
Levothyroxine
Thyroxin
(-)-Thyroxine
THX
T4
T4 (hormone)
Thyreoideum
L-Thyroxin
L-T4
Thyroxinal
Thyrax
NSC 36397
Henning
Levotiron
SK&F 1-6528

Identifiers:

SMILES:
N[C@@H](Cc1cc(I)c(Oc2cc(I)c(O)c(I)c2)c(I)c1)C(=O)O
InChI:
InChI=1S/C15H11I4NO4/c16-8-4-7(5-9(17)13(8)21)24-14-10(18)1-6(2-11(14)19)3-12(20)15(22)23/h1-2,4-5,12,21H,3,20H2,(H,22,23)/t12-/m0/s1

Key Properties

Melting Point
235-236 °C (decomp) CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 776.87 g/mol CAS Common Chemistry
776.8720000000001 g/mol RDKit
776.686699832 g/mol RDKit
Canonical SMILES O=C(O)C(N)CC1=CC(I)=C(OC2=CC(I)=C(O)C(I)=C2)C(I)=C1 CAS Common Chemistry
InChI InChI=1S/C15H11I4NO4/c16-8-4-7(5-9(17)13(8)21)24-14-10(18)1-6(2-11(14)19)3-12(20)15(22)23/h1-2,4-5,12,21H,3,20H2,(H,22,23)/t12-/m0/s1 CAS Common Chemistry
InChI Key InChIKey=XUIIKFGFIJCVMT-LBPRGKRZSA-N CAS Common Chemistry
Melting Point 235-236 °C (decomp) CAS Common Chemistry
Name (-)-Thyroxine CAS Common Chemistry
Heavy Atom Count 24 RDKit
Hydrogen Bond Acceptors 4 RDKit
Hydrogen Bond Donors 3 RDKit
Rotatable Bonds 5 RDKit
Aromatic Ring Count 2 RDKit
Topological Polar Surface Area 92.78000000000002 Ų RDKit
LogP 4.5573000000000015 RDKit
Molar Refractivity 124.80600000000001 RDKit

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