Triiodo L thyronine
4 Inquiries
6893-02-3
Pharmaceutical Grade
99%
china
100mg
2026-09-10
peptides
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial Reference3,3',5-Triiodo-L-thyronine is a potent agonist of thyroid hormone receptors TRα and TRβ with Kis of 2.3 nM.
Crystalline T3 (liothyronine sodium, Cytomel) has a rapid onset and short duration of action. It is the therapy of choice when it is desirable to have rapid onset or cessation of activity, such as in patients with heart disease.
Off-White Solid
ChEBI: An iodothyronine compound having iodo substituents at the 3-, 3'- and 5-positions. Although some is produced in the thyroid, most of the 3,3',5-triiodo-L-thyronine in the body is generated by mono-deiodination of L-thyroxi e in the peripheral tissues. Its metabolic activity is about 3 to 5 times that of L-thyroxine. The sodium salt is used in the treatment of hypothyroidism.
Likely impurities are as in thyroxine. Purify it by dissolving in dilute NH3 at ~20o, then crystallise it by addition of dilute acetic acid to pH 6. Alternatively 35g are purified by dissolving it in a mixture of EtOH (250mL) and 2N NaOH (100mL), then hot 2N HCl is added to the boiling solution until the pH is 4-5. After cooling for a few hours, the solid is filtered off and dried in a vacuum [m 233-235o(dec)]. [Chambers et al. J Chem Soc 2433 1949, Beilstein 14 III 1566, 14 IV 2373.]Basic Info-
Product Name:
3,3',5-Triiodo-L-thyronine
Other Name:L-Tyrosine, O-(4-hydroxy-3-iodophenyl)-3,5-diiodo- (9CI);NSC 80203;Thyronine, 3,3',5-triiodo-, L- (6CI);IODOTHYRONINE;3,3,5-TRIIODO-L -THYRONINE 95-98% FREE ACID CRYSTALLINE;O-(4-Hydroxy-3-iodophenyl)-3,5-diiodo-L-tyrosine;3,3μ,5 Triiodothyronine (T3);3,3μ,5-Triiodo-L-thyronine, Liothyronine, T3, O-(4-Hydroxy-3-iodophenyl)-3,5-diiodo-L-tyrosine
CAS No.:6893-02-3
Molecular Formula:C15H12I3NO4
InChIKeys:AUYYCJSJGJYCDS-LBPRGKRZSA-N
Molecular Weight:650.97
Exact Mass:650.97
BRN:2710227
EC Number:229-999-3
Color/Form:Off-white to pale yellow
HScode:29225090
Categories:
Characteristics-
PSA:
92.8
XLogP3:1.7
Appearance:Off-white to pale yellow powder
Density:2.2155 (estimate)
Melting Point:234-238 °C(lit.)
Boiling Point:232°C (rough estimate)
Flash Point:294.6±30.1 °C
Refractive Index:1.763
Water Solubility:Insoluble in water, ethanol and propylene glycol. Soluble in dilute alkalies.
Storage Conditions:−20°C
Toxicity:LDLo oral in rat: 7500mg/kg
Specific rotation:23 º (c=2 in ethanol)
PKA:pKa 8.5 (Uncertain);8.4 (Uncertain);8.45 (Uncertain)
Critical Temperature & Pressure:-20°C
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Commercially available liothyronine sodium tablets should be stored in tight containers at a temperature less than 40 deg C, preferably between 15-30 deg C. Commercially available liothyronine sodium injection should be stored at 2-8 deg C. Liothyronine sodium
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Seller Information
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Business Type:
Trader
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Main Products:
peptides
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Location:
126 AUTUMN ROAD ,LAKEWOOD NEW JERSEY
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Payment Terms:
TT against copy of documents,100% TT in advance
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
51-100
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Year of Establishment:
2023
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Certifications:
certifacate for peptieds
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
United Kingdom
L-Triiodothyronine
10 G Jan 27, 2026 
Italy
Liothyronine
200 MG Nov 19, 2024 
United States
Triiodo-L-thyronine
100 PCS Aug 11, 2026
Italy
Lt3
100 MG Nov 29, 2024 Post an enquiry for this product