Pseudothiohydantoin

Product Name: Pseudothiohydantoin
CAS No.: 556-90-1
Chemical Name: Pseudothiohydantoin
Synonyms: 2-aMinothiazol-4-ol;2-aminothiazol-4(5H)-one;4(5H)-Thiazolone, 2-imino-;usafdm-1;NSC 2858;NSC45956;USAF dm-1;5324-10-7;NSC 45956;SBB004297
CBNumber: CB4853824
Molecular Formula: C3H4N2OS
Formula Weight: 116.14
MOL File: 556-90-1.mol

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Pseudothiohydantoin Property

Melting point:: 249 °C (dec.)(lit.)
Boiling point:: 253.5±23.0 °C(Predicted)
Density: 1.637 g/cm3
refractive index: 1.6550 (estimate)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
pka: 0.54±0.20(Predicted)
form: solid
Appearance: White to yellow Solid
EPA Substance Registry System: 4(5H)-Thiazolone, 2-amino- (556-90-1)

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Safety

Hazard Codes: Xi
Safety Statements: 24/25
WGK Germany: 3
RTECS: XJ6276000
TSCA: Yes
HazardClass: IRRITANT
HS Code: 29349990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P331Do NOT induce vomiting.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical

Product number: P2911
Product name: Pseudothiohydantoin
Packaging: 5G
Price: $46
Updated: 2025/07/31

TCI Chemical

Product number: P2911
Product name: Pseudothiohydantoin
Packaging: 25G
Price: $137
Updated: 2025/07/31

TRC

Product number: B404908
Product name: 2-Amino-4-hydroxythiazole
Packaging: 2.5g
Price: $75
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FA35023
Product name: 2-Amino-4,5-dihydro-1,3-thiazol-4-one
Packaging: 25g
Price: $80
Updated: 2021/12/16

ChemScene

Product number: CS-W005207
Product name: 2-Aminothiazol-4(5H)-one
Packaging: 25g
Price: $51
Updated: 2021/12/16

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Pseudothiohydantoin Chemical Properties,Usage,Production

Chemical Properties

white to yellowish fine needles or powder

Uses

2-Amino-4,5-dihydro-1,3-thiazol-4-one, HCl

Synthesis

105-39-5

17356-08-0

556-90-1

A) Synthesis of 2-imino-4-thiazolidinone (IV): 20g (0.263mol) of thiourea (III) and 50ml of ethanol were added to a 100ml round bottom flask fitted with a condenser. The mixture was heated to reflux. Over a period of 30 min, 32.22 g (0.263 mol) of ethyl chloroacetate (II) was slowly added dropwise to the reaction system. The reflux state was maintained and the progress of the reaction was monitored by thin layer chromatography (TLC). After completion of the reaction, the mixture was cooled to room temperature. The 2-imino-thiazolidin-4-one hydrochloride (pseudothioglycolide hydrochloride) was isolated by filtration. The hydrochloride was dissolved in water, neutralized with sodium acetate solution and 2-imino-4-thiazolidinone (IV) was precipitated after cooling. The product was collected by filtration and dried at 60 °C. Yield: 86%; melting point: 254-259 °C.

References

[1] Patent: CN105884712, 2016, A. Location in patent: Paragraph 0069; 0070; 0071
[2] Patent: CN104059060, 2017, B. Location in patent: Paragraph 0058; 0059; 0060
[3] Patent: WO2010/82212, 2010, A2. Location in patent: Page/Page column 28
[4] Patent: WO2017/176812, 2017, A1. Location in patent: Paragraph 0511
[5] Bioorganic and Medicinal Chemistry Letters, 2011, vol. 21, # 22, p. 6739 - 6745

Pseudothiohydantoin Preparation Products And Raw materials

Raw materials

Ethyl chloroacetate Thiourea

Preparation Products

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Pseudothiohydantoin Suppliers

Austria 1 Belgium 3 China 108 Europe 1 Germany 4 India 3 Japan 3 Russia 2 Slovakia 3 Switzerland 2 Ukraine 1 United Kingdom 16 United States 28 Global 175

Shanghai Boyle Chemical Co., Ltd.

Tel: 021-50182298 021-50180596
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Email: sales@boylechem.com
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ProdList: 2208
Advantage: 55

J & K SCIENTIFIC LTD.

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Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

ShangHai DEMO Chemical Co.,Ltd

Tel: 400-021-7337 2355568890
Fax: 0086-21-50182339
Email: sales@demochem.com
Country: China
ProdList: 2572
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Beijing HwrkChemical Technology Co., Ltd

Tel: 18515581800 18501085097
Fax: 010-89508210
Email: sales.bj@hwrkchemical.com
Country: China
ProdList: 9400
Advantage: 55

Energy Chemical

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Email: sales8178@energy-chemical.com
Country: China
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Pure Chemistry Scientific Inc.

Tel: 001-857-928-2050 or 1-888-588-9418
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Tetranov Biopharm

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Adamas Reagent, Ltd.

Tel: 400-6009262 16621234537
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Accela ChemBio Co.,Ltd.

Tel: 021-50795510 4000665055
Fax: 021-50795055
Email: sales@accelachem.com
Country: China
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View Lastest Price from Pseudothiohydantoin manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: Pseudothiohydantoin 556-90-1
Price: US $0.00-0.00/KG
Min. Order: 5mg
Purity: 99%HPLC
Supply Ability: 2000tons
Release date: 2020-01-06

Career Henan Chemical Co

Product: Pseudothiohydantoin 556-90-1
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 1000KGS
Release date: 2019-12-25

Nanjing jinheyou Trading Co., Ltd.

Product: Pseudothiohydantoin 556-90-1
Price: US $0.00/g
Min. Order: 1g
Purity: 99.5%min
Supply Ability: 20kg/week
Release date: 2019-10-31

556-90-1, PseudothiohydantoinRelated Search:

Dimethyl thiophene-2,3-dicarboxylate Thiazolyl Blue 2,5-Bis-Thiopheneboronic acid pinacol ester THIOPHENE-2-THIOCARBOXAMIDE Thiophene-2,3-dicarboxylic acid THIENO[3,2-B]PYRIDINE Thiazole-4-carboxaldehyde Thiazolo[5,4-c]pyridine-2-thiol Thiazole-5-carboxylic acid Thiazole 2-AMINO-4,5-DIHYDRO-1,3-THIAZOL-4-ONE HYDROCHLORIDE,2-Amino-4,5-dihydro-1,3-thiazol-4-one hydrochloride, tech Pseudothiohydantoin 2-M-TOLYLAMINO-THIAZOL-4-ONE 2-P-TOLYLAMINO-THIAZOL-4-ONE 2-(2-amino-4-oxo-1,3-thiazol-5-yl)acetic acid 2-AMINO-5-FLUORO-5-(TRIFLUOROMETHYL)-4,5-DIHYDRO-1,3-THIAZOL-4-ONE 2-PHENYLAMINO-THIAZOL-4-ONE RARECHEM AL FC 0006

2-amino-4(5h)-thiazolon

2-Imino-1,3-thiazolidin-4-one

2-Imino-2-thiazolin-4-one

2-imino-4-thiazolidinon

2-imino-4-thiazolidinone

2-Imino-4-thiazolidone

2-Thiazolin-4-one, 2-imino-

4(5H)-Thiazolone, 2-imino-

4-Thiazolidinone, 2-imino-

-Amino-thiazol-4-one

USAF be-4-5

USAF dm-1

usafbe-4-5

usafdm-1

PSEUDOTHIOHYDANTOIN

TIMTEC-BB SBB004297

2-imino-1,3-thiazol-4-one

5324-10-7

AIDS159806

AIDS-159806

EINECS 209-145-6

NSC 2858

NSC 45956

NSC45956

SBB004297

ST5104327

ZINC01641186

ZINC03860694

BUTTPARK 148\07-35

AURORA 16732

2-AMINO-4(5H)-THIAZOLONE

Pseudothiohydantoin,97%

2-IMINO-THIAZOLIDIN-4-ONE

2-AMINO-1,3-THIAZOLIN-4-ONE

2-AMINO-4,5-DIHYDRO-1,3-THIAZOL-4-ONE

2-AMINO-4,5-DIHYDRO-1,3-THIAZOL-4-ONE HYDROCHLORIDE

2-AMINOTHIAZOLINONE HCL

2-AMINOTHIAZOLE-4-ONE HYDROCHLORIDE

Pseudothiohydantoin ,98%

2-Iminothiazolidine-4-one

2-AMINO-4-OXO-THIAZOLE

2-aminothiazol-4(5H)-one

2-aMinothiazol-4-ol

3-thiazol-4-one hydrochloride

5-dihydro-1

Pseudothiohydantion

2-amino-1,3-thiazol-4(5H)-one

2-amino-1,3-thiazol-4-one

2-amino-4-thiazolone

2-Thiazolin-4-one, 2-amino-

2-AMinothiazol-4-one

4(5H)-Thiaz

2-Amino-4,5-dihydrothiazol-4-one

556-90-1

C3H4NOSHCl

Building Blocks

Thiazolines/Thiazolidines

Heterocyclic Building Blocks