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3,5-Diiodothyroacetic acid

3,5-Diiodothyroacetic acid structure

CAS No.: 1155-40-4

Chemical Name:: 3,5-Diiodothyroacetic acid

Synonyms: NSC 90463;EINECS 214-582-0;THYROACETIC ACID;3,5-Diiodothyroacetic acid;Levothyroxine Sodium Impurity 14;4-(4-HYDROXYPHENOXY)-3,5-DIIODOPHENYLACETIC ACID;4-(4-Hydroxyphenoxy)-3,5-diiodobenzeneacetic acid;[4-(p-Hydroxyphenoxy)-3,5-diiodophenyl]acetic Acid;2,6-Diiod-4-carboxymethyl-4'-hydroxy-diphenylether;Benzeneacetic acid,4-(4-hydroxyphenoxy)-3,5-diiodo-

CBNumber:: CB2697877

Molecular Formula:: C14H10I2O4

Molecular Weight:: 496.04

MDL Number:: MFCD01310871

MOL File:: 1155-40-4.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-09-12 18:51:23

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3,5-Diiodothyroacetic acid Properties

Melting point	223.5-225.0 °C(Solv: water (7732-18-5); acetic acid (64-19-7))
Boiling point	527.8±50.0 °C(Predicted)
Density	2.156±0.06 g/cm3(Predicted)
storage temp.	2-8°C
solubility	DMSO (Slightly), Methanol (Slightly)
form	Solid
pka	4.10±0.10(Predicted)
color	Off-White to Pale Brown

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302-H312-H332

Precautionary statements

P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P330-P362-P403+P233-P501

NFPA 704

	0
3		0

3,5-Diiodothyroacetic acid price More Price(33)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Cayman Chemical	22108	3,5-Diiodothyroacetic Acid ≥98%	1155-40-4	10mg	$75	2026-04-30	Buy
Cayman Chemical	22108	3,5-Diiodothyroacetic Acid ≥98%	1155-40-4	25mg	$178	2026-04-30	Buy
Cayman Chemical	22108	3,5-Diiodothyroacetic Acid ≥98%	1155-40-4	50mg	$333	2026-04-30	Buy
Cayman Chemical	22108	3,5-Diiodothyroacetic Acid ≥98%	1155-40-4	100mg	$627	2026-04-30	Buy
Cayman Chemical	22108	3,5-Diiodothyroacetic Acid ≥98%	1155-40-4	1mg	$35	2021-12-16	Buy

Product number	Packaging	Price	Buy
22108	10mg	$75	Buy
22108	25mg	$178	Buy
22108	50mg	$333	Buy
22108	100mg	$627	Buy
22108	1mg	$35	Buy

3,5-Diiodothyroacetic acid Chemical Properties, Uses, Production

Uses

The acetic acid analog of Thyroxine. A potent Thyroxine impurity.

3,5-Diiodothyroacetic acid synthesis

Synthesis of 3,5-Diiodothyroacetic acid from ethyl 3,5-diiodo-4-(4-methoxyphenoxy)phenylacetate

3,5-Diiodothyroacetic acid Preparation Products And Raw materials

Raw materials

Benzeneacetic acid, 3,5-diiodo-4-(4-methoxyphenoxy)-, methyl ester ethyl 2-(4-hydroxy-3,5-dinitrophenyl)acetate (4-phenylmethoxyphenyl) benzoate [4-(4-Methoxy-phenoxy)-3,5-dinitro-phenyl]acetic acid ethyl ester 4-Hydroxyphenyl benzoate

ethyl 3,5-diiodo-4-(4-methoxyphenoxy)phenylacetate Monobenzone 4-Hydroxyphenylacetic acid 4-Methoxyphenol 4-Methoxyphenylboronic acid

Hydroquinone

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Preparation Products

3,5-Diiodothyroacetic acid Suppliers

Global Suppliers ( 56)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Nanjing Chemlin Chemical Co., Ltd	025-83697070 13770331960	info@chemlin.com.cn	China	16305	64
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32273	50
BOC Sciences	1-631-485-4226; 16314854226	info@bocsci.com	United States	9920	65
Shifang ShengYuan Technology Co., Ltd.	0838-6510595 13402890778 15102836436	1120021438@qq.com	China	132	56
Quality Control Solutions Ltd.	0755-66853366 13670046396	orders@qcsrm.com	China	18188	56
Shanghai YuanYe Biotechnology Co., Ltd.	15026964105	2881489226@qq.com	China	89667	60
Shanghai QianYan Bio-technology Co., Ltd	02781293128	orders@biochemsafebuy.com	China	9904	55
Shijiazhuang yaoBo Pharmaceutical Co., Ltd.	15633056635	2880679888@qq.com	China	2796	58
Wuhan HongxinKang Fine Chemical Co., Ltd.	027-59362599 18674037007	zhuoxingwc@163.com	China	947	58

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Nanjing Chemlin Chemical Co., Ltd	64
Chemsky（shanghai）International Co.,Ltd.	50
BOC Sciences	65
Shifang ShengYuan Technology Co., Ltd.	56
Quality Control Solutions Ltd.	56
Shanghai YuanYe Biotechnology Co., Ltd.	60
Shanghai QianYan Bio-technology Co., Ltd	55
Shijiazhuang yaoBo Pharmaceutical Co., Ltd.	58
Wuhan HongxinKang Fine Chemical Co., Ltd.	58

View Latest Price from 3,5-Diiodothyroacetic acid manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-05-11	3,5-Diiodothyroacetic Acid 1155-40-4	$246.00-1090.00			10g	TargetMol Chemicals Inc.
	2025-12-24	3,5-DIIODOTHYROACETIC ACID 1155-40-4		1KG	99.0%	1000 tons	Shaanxi Dideu Medichem Co. Ltd

3,5-Diiodothyroacetic Acid
1155-40-4
$246.00-1090.00
TargetMol Chemicals Inc.

3,5-DIIODOTHYROACETIC ACID
1155-40-4
$0.10
99.0%
Shaanxi Dideu Medichem Co. Ltd

1155-40-4 (3,5-Diiodothyroacetic acid) Related Search:

LevosiMendan iMpurity α-Hydroxy-4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodo-N-methyl-benzeneacetamide (S)-2-(2-Amino-3-(4-(3,5-diiodo-4-methoxyphenoxy)-3,5-diiodophenyl)propanamido)acetic Acid Levothyroxine Impurity (2S,2''S)-3,3''-(((6,6''-Dihydroxy-5-iodo-[1,1''-biphenyl]-3,3''-diyl)bis(oxy))bis(3,5-diiodo-4,1-phenylene))bis(2-aminopropanoic Acid)

Levothyroxine Impurity 12 Levothyroxine Impurity 16 Levothyroxine EP Impurity B Levothyroxine Related Compound (2-Acetamido-3-(4-acetoxy-3,5-diiodophenyl)propanoic Acid) 3-Iodo-DL-tyrosine

Levothyroxine Impurity Levosimendan Impurity 8 Levothyroxine Impurity 54 Levothyroxine Impurity Levothyroxine Related Compound (2-Acetamido-3-(3,5-diiodo-4-(4-methoxyphenoxy)phenyl) Propanoic Acid)

Levothyroxine Impurity 16 3,3',5-Triiodothyroacetic acid 3,3',5-Triiodothyropropionic acid

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4-(4-HYDROXYPHENOXY)-3,5-DIIODOPHENYLACETIC ACID THYROACETIC ACID 4-(4-Hydroxyphenoxy)-3,5-diiodobenzeneacetic acid [4-(p-Hydroxyphenoxy)-3,5-diiodophenyl]acetic Acid NSC 90463 Levothyroxine Sodium Impurity 14 Benzeneacetic acid,4-(4-hydroxyphenoxy)-3,5-diiodo- Levothyroxine impurity 5/3,5-Diiodo Thyroacetic Acid [4-(4-Hydroxy-phenoxy)-3,5-dijod-phenyl]-essigsaeure 2,6-Diiod-4-carboxymethyl-4'-hydroxy-diphenylether EINECS 214-582-0 3,5-Diiodothyroacetic acid 1155-40-4 C14H10I2O4 Aromatic Phenylacetic Acids and Derivatives Aromatics Drug Analogues Intermediates & Fine Chemicals Pharmaceuticals