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5-Methylhydantoin

5-Methylhydantoin structure

CAS No.: 616-03-5

Chemical Name:: 5-Methylhydantoin

Synonyms: 2,4-Imidazolidinedione, 5-methyl-;5-METHYLIMIDAZOLIDINE-2,4-DIONE;NSC75829;AI3-61188;NSC 75829;ST5409440;KBio2_002436;KBio2_005004;KBio2_007572;KBio3_001892

CBNumber:: CB9178135

Molecular Formula:: C4H6N2O2

Molecular Weight:: 114.1

MDL Number:: MFCD00022398

MOL File:: 616-03-5.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 05:10:10

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5-Methylhydantoin Properties

Melting point	148-152 °C(lit.)
Boiling point	213.59°C (rough estimate)
Density	1.3565 (rough estimate)
refractive index	1.4487 (estimate)
storage temp.	Sealed in dry,Room Temperature
solubility	Methanol (Slightly), Water (Slightly)
form	Solid
pka	8.91±0.10(Predicted)
color	White
Water Solubility	Insoluble in water.
BRN	81081
InChI	1S/C4H6N2O2/c1-2-3(7)6-4(8)5-2/h2H,1H3,(H2,5,6,7,8)
InChIKey	VMAQYKGITHDWKL-UHFFFAOYSA-N
SMILES	CC1NC(=O)NC1=O
CAS DataBase Reference	616-03-5(CAS DataBase Reference)
NIST Chemistry Reference	2,4-Imidazolidinedione, 5-methyl-(616-03-5)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P264-P271-P280-P302+P352-P305+P351+P338

target organs

Respiratory system

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Risk Statements

36/37/38

Safety Statements

26-36

WGK Germany

HS Code

2933210090

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

NFPA 704

	1
0		0

5-Methylhydantoin price More Price(33)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	533653	5-Methylhydantoin 97%	616-03-5	1g	$73.1	2026-04-30	Buy
TCI Chemical	M1699	5-Methylhydantoin >98.0%(T)	616-03-5	1g	$27	2021-12-16	Buy
Usbiological	161961	5-Methylhydantoin	616-03-5	1g	$403	2026-06-03	Buy
Apolloscientific	OR451305	5-Methylhydantoin 95%	616-03-5	1g	$33	2026-06-04	Buy
Apolloscientific	OR451305	5-Methylhydantoin 95%	616-03-5	5g	$123	2026-06-04	Buy

Product number	Packaging	Price	Buy
533653	1g	$73.1	Buy
M1699	1g	$27	Buy
161961	1g	$403	Buy
OR451305	1g	$33	Buy
OR451305	5g	$123	Buy

5-Methylhydantoin Chemical Properties,Uses,Production

Chemical Properties

White Crystalline Solid

Uses

5-Methylhydantoin is a derivative of Hydantoin (H675000), a heterocyclic compound used to synthesis various pharmaceutical goods including anticonvulsants such as fosphenytoin (F728900).

Uses

5-Methylhydantoin is usede as a reactant for preparation of N-chlorohydantoin, Mitsunobu reaction, Pseudomonas putida strain allowing conversion into L-amino acids, D-hydantoinase from Agrobacteria tumefaceins and enzymatic racemization.

Definition

ChEBI: 5-methylimidazolidine-2,4-dione is an imidazolidine-2,4-dione.

5-Methylhydantoin Preparation Products And Raw materials

Raw materials

Preparation Products

5-Methylhydantoin Suppliers

Global( 112)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Nanjing Chemlin Chemical Co., Ltd	025-83697070 13770331960	info@chemlin.com.cn	China	16305	64
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
Shandong Xiya Chemical Co., Ltd	13355009207 13355009207	3007715519@qq.com	China	18722	57
Syntechem Co.,Ltd		info@syntechem.com	China	12973	57
Maya High Purity Chemicals	+86 (573) 82222445 (0)18006601000 452520369	sales@maya-r.com	China	11693	57
TCI Europe	320-37350700	sales@tcieurope.eu	Europe	23654	75

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Energy Chemical	61
Nanjing Chemlin Chemical Co., Ltd	64
Shanghai Hanhong Scientific Co.,Ltd.	64
Shandong Xiya Chemical Co., Ltd	57
Syntechem Co.,Ltd	57
Maya High Purity Chemicals	57
TCI Europe	75

View Lastest Price from 5-Methylhydantoin manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2020-01-01	5-Methylhydantoin 616-03-5	$9.80	1KG	≥98%	20 tons	Career Henan Chemical Co

5-Methylhydantoin
616-03-5
$9.80
≥98%
Career Henan Chemical Co

5-Methylhydantoin Spectrum

5-Methylhydantoin(616-03-5)MS 5-Methylhydantoin(616-03-5)¹HNMR 5-Methylhydantoin(616-03-5)¹³CNMR 5-Methylhydantoin(616-03-5)IR1 5-Methylhydantoin(616-03-5)IR2

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