ChemicalBook >> CAS DataBase List >>N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea

N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea

CAS No.
130-23-4
Chemical Name:
N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea
Synonyms
K ACID;Euopean K Acid;EUROPEAN K-ACID;1-Amino-8-naphthol-4,6-disulfonicaci;1-amino-8-naphtho-4,6-Disulfonic acid;1 AMINO 8 HYDROXY 4:6 DISULFONIC ACID;1-AMINO-8-NAPHTHOL-4,6-DISULFONIC ACID;8-AMINO-1-NAPHTHOL-3,5-DISULFONIC ACID;4-Amino-5-naphthol-1,7-disulfonic acid;KACID(1-AMINO-8NAPHTHO-4,6-DISULFONICACID)
CBNumber:
CB0207416
Molecular Formula:
C10H9NO7S2
Molecular Weight:
319.31
MDL Number:
MFCD00035711
MOL File:
130-23-4.mol
MSDS File:
SDS
Last updated:2023-11-07 17:05:35

N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea Properties

Density 1.880±0.06 g/cm3(Predicted)
pka -0.83±0.40(Predicted)
Water Solubility 20g/L at 26.4℃
LogP -2.33
CAS DataBase Reference 130-23-4(CAS DataBase Reference)
FDA UNII XG4RHP73ZN

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation CHM0289797 1-AMINO-8-NAPHTHOL-4,6-DISULFONIC ACID 98.00% 130-23-4 5MG $495.64 2021-12-16 Buy
AK Scientific T970 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid 130-23-4 100mg $566 2021-12-16 Buy
Chemenu CM140668 4-amino-5-hydroxynaphthalene-1,7-disulfonicacid 95% 130-23-4 1g $1046 2021-12-16 Buy
Arctom AS033083 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid 95% 130-23-4 1g $1087 2021-12-16 Buy
BLDpharm BD17973 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid 95+% 130-23-4 1g $1120 2021-12-16 Buy
Product number Packaging Price Buy
CHM0289797 5MG $495.64 Buy
T970 100mg $566 Buy
CM140668 1g $1046 Buy
AS033083 1g $1087 Buy
BD17973 1g $1120 Buy

N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea Chemical Properties,Uses,Production

Chemical Properties

1-Amino-8-hydroxynaphthalene-4,6-disulfonic acid [130-23-4]. (4-amino-5-hydroxynaphthalene-1,7-disulfonic acid), K acid, C10H9NO7S2, Mr 319.3: the acid sodium salt of 1-Amino-8-hydroxynaphthalene-4,6-disulfonic acid is very soluble in water, but the acid potassium salt is less soluble and is more easily salted out. K acid couples under acid and alkaline conditions in a similar manner to H acid.

Uses

Azo dye intermediate.

Uses

The N-substituted derivatives of K acid, such as N-acetyl, N-benzoyl, N-(2,5-dichlorobenzoyl), and N-benzyl, are used as monoazo coupling components in special cases where an improvement in dye properties over the H acid analogue is demonstrable.

Production Methods

1-Aminonaphthalene-4,6,8-trisulfonic acid paste is heated with sodium hydroxide liquor in an autoclave at 170℃ for 12 h, after which the mixture is added to excess dilute hydrochloric acid. After heating to remove sulfur dioxide, the product (including ca. 8 % of the isomeric 5-amino-2-hydroxynaphthalene-4,8-disulfonic acid) is completely precipitated by cooling and is isolated in 86 % yield. Purification of crude K acid may be effected by dissolving it in aqueous alkali and filtering off the less soluble 5,2,4,8-isomer before reprecipitating.

Flammability and Explosibility

Not classified

Global( 62)Suppliers
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SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293 sales@sdzschem.com China 2930 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28172 58
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Alchem Pharmtech,Inc.
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CONIER CHEM AND PHARMA LIMITED
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career henan chemical co
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Dideu Industries Group Limited
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GIHI CHEMICALS CO.,LIMITED
+8618058761490 info@gihichemicals.com China 49979 58
Shanghai Likang New Materials Co., Limited
+86-16631818819 +86-17736933208 3684455296@qq.com China 9300 58

View Lastest Price from N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea  pictures 2022-08-27 N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea
130-23-4
US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
1-Amino-8-naphthol-4,6-disulfonic acid pictures 2021-08-12 1-Amino-8-naphthol-4,6-disulfonic acid
130-23-4
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
1-Amino-8-naphthol-4,6-disulfonic acid  pictures 2020-02-26 1-Amino-8-naphthol-4,6-disulfonic acid
130-23-4
US $0.00-0.00 / KG 1KG 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd
K ACID EUROPEAN K-ACID 1 AMINO 8 HYDROXY 4:6 DISULFONIC ACID 1-AMINO-8-NAPHTHOL-4,6-DISULFONIC ACID 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid 4-amino-5-hydroxynaphthalene-1,7-disulphonic acid 1-amino-8-naphtho-4,6-Disulfonic acid 1-Amino-8-Naphthol-4£6-disulfonic acid/European K Acid 8-AMINO-1-NAPHTHOL-3,5-DISULFONIC ACID 4-Amino-5-hydroxy-1,7-naphthalenedisulfonic acid 4-Amino-5-naphthol-1,7-disulfonic acid KACID(1-AMINO-8NAPHTHO-4,6-DISULFONICACID) 4-azanyl-5-hydroxy-naphthalene-1,7-disulfonic acid N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl 1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- 1-Amino-8-naphthol-4,6-disulfonicaci N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea ISO 9001:2015 REACH Euopean K Acid 130-23-4 Intermediates of Dyes and Pigments