t-4

L-Thyroxine (NSC 36397) is the major hormone derived from the thyroid gland. L-Thyroxine (NSC 36397) is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. L-Thyroxine (NSC 36397) is released from thyroglobulin by proteolysis and secreted into the blood. L-Thyroxine (NSC 36397) is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

(25R)-Spirost-4-ene-3,6,12-trione is a naturally occurring compound isolated from *Tribulus terrestris* L. [1].

6α-Hydroxystigmast-4-en-3-one is a useful organic compound for research related to life sciences and the catalog number is T124266.

Cholest-4,6-diene-3-ol is a useful organic compound for research related to life sciences and the catalog number is T125900.

Cholest-4-ene-3,6-di-acetate is a useful organic compound for research related to life sciences and the catalog number is T131566.

3-oxoandrost-4-en-17-yl hexanoate is a useful organic compound for research related to life sciences and the catalog number is T131615.

17-methylandrost-4-ene-3,6,17-triol is a useful organic compound for research related to life sciences and the catalog number is T131616.

17-hydroxy-17-methylandrost-4-ene-3,6-dione is a useful organic compound for research related to life sciences and the catalog number is T131621.

Cyclopent-4-ene-1,3-dione is a highly reactive cyclic diketone organic compound that has been employed as a key synthetic intermediate in the laboratory synthesis of more complex molecules, including 2-methoxymethylene-Cyclopent-4-ene-1,3-dione and the natural product derivative chrysotrione B (a 2-acylcyclopentene-1,3-dione derivative), Cyclopent-4-ene-1,3-dione was historically used to investigate the influence of sulfhydryl group-specific chemical reagents on the activity of bovine heart phospholipid exchange protein.

'(25R)-12α-Hydroxyspirost-4-en-3-one is a minor metabolite resulting from Nocardia globerula's metabolization of Hecogenin [1].'

XT-4, an antimicrobial peptide originating from the skin secretions of Xenopus tropicalis, exhibits potent activity against E. coli, with a minimum inhibitory concentration (MIC) valued at 18 μM [1].

(25S)-12β-Hydroxyspirost-4-en-3-one, a natural compound isolated from Dioscorea chiupasensis [1].

6beta-Hydroxystigmast-4-en-3-one is a natural product for research related to life sciences. The catalog number is TN3172 and the CAS number is 36450-02-9.

7-(4-hydroxy-3-methoxyphenyl)-1-phenylhept-4-en-3-one (DPHB) is a natural product for research related to life sciences. The catalog number is TN3217 and the CAS number is 79559-60-7.

Stigmast-4-ene-3,6-dione has anti-inflammatory and anti-allergic properties.

Stigmast-4-ene-3beta,6beta-diol possesses marked inhibitory activity against 12-O- -tetradecanoylphorbol-13-acetate (TPA)-induced inflammation in mice.

24-Hydroxy-25-ethoxy-3,4-seco- is a natural product for research related to life sciences. The catalog number is TN5950 and the CAS number is 1392210-81-9.

6β-Hydroxyandrost-4-ene-3,17-dione is a natural product for research related to life sciences. The catalog number is TN6359 and the CAS number is 63-00-3.

(Z)-5-Hydroxy-1,7-diphenylhept-4-en-3-one is a natural product for research related to life sciences. The catalog number is TN6362 and the CAS number is 856007-75-5.

5-Hydroxy-7-(4-hydroxy-3-methoxyphenyl)-1-phenylhept-4-en-3-one is a natural product for research related to life sciences. The catalog number is TN6374 and the CAS number is 142831-06-9.

(25R)-Spirost-4-ene-3,12-dione, a natural product,

1-Octanol, a saturated fatty alcohol, functions as an inhibitor of T-type calcium channels (T-channels), showing an inhibitory concentration (IC50) of 4 μM for native T-currents[1]. Additionally, 1-Octanol is recognized for its potential as a biofuel, possessing diesel-like properties[2].

Thyroxine sulfate is a sulfoconjugated derivative of Thyroxine and is also a metabolite of Thyroxine.

1. Negletein (7-O-Methylbaicalein) has anti-inflammatory and immunomodulatory activities via inhibition of TNF-α, iNOS and IL-1β. 2. Negletein as a neuroprotectant enhances the action of nerve growth factor and induces neurite outgrowth in PC12 cells. 3. Negletein shows a comparable redox-active potential, and it (50 μM, 4 h) can activate Nrf2. 4. Negletein shows significant antimicrobial activity. 5. Negletein has anti-hypoxia activity, it can significantly prolong the survival time of hypoxic mice.6. Negletein has anti- Alzheimer's disease activity, it inhibits the iron-dependent formation of ROS and also blocks the iron-induced oligomerization of amyloid beta 42 in vitro. 7. Negletein (IC50: 3.89 + - 0.39 microM) exhibits potent inhibitory activity against nuclear factor of activated T cells (NFAT) transcription factor.