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

Product Name: 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
Formula Weight: 319.31
MOL File: 130-23-4.mol

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

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)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

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

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N-Bromosuccinimide Price

American Custom Chemicals Corporation

Product number: CHM0289797
Product name: 1-AMINO-8-NAPHTHOL-4,6-DISULFONIC ACID
Purity: 98.00%
Packaging: 5MG
Price: $495.64
Updated: 2021/12/16

AK Scientific

Product number: T970
Product name: 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid
Packaging: 100mg
Price: $566
Updated: 2021/12/16

Chemenu

Product number: CM140668
Product name: 4-amino-5-hydroxynaphthalene-1,7-disulfonicacid
Purity: 95%
Packaging: 1g
Price: $1046
Updated: 2021/12/16

Arctom

Product number: AS033083
Product name: 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid
Purity: 95%
Packaging: 1g
Price: $1087
Updated: 2021/12/16

BLDpharm

Product number: BD17973
Product name: 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid
Purity: 95+%
Packaging: 1g
Price: $1120
Updated: 2021/12/16

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

N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea Preparation Products And Raw materials

Raw materials

1-Naphthylamine-4,6,8-trisulfonic acid

Preparation Products

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

China 44 Germany 1 India 5 United Kingdom 2 United States 10 Global 62

Alchem Pharmtech,Inc.

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APAC Pharmaceutical, LLC

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Nastek Solutions Pvt. Ltd.

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Aakash Chemicals and Dye-Stuffs, Inc.

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ProdList: 1012
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ChemPacific Corporation

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ProdList: 6891
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View Lastest Price from N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea manufacturers

Zhuozhou Wenxi import and Export Co., Ltd

Product: 1-Amino-8-naphthol-4,6-disulfonic acid 130-23-4
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

Shaanxi Dideu Medichem Co. Ltd

Product: 1-Amino-8-naphthol-4,6-disulfonic acid 130-23-4
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 100 tons
Release date: 2019-12-30

Career Henan Chemical Co

Product: K Acid 130-23-4
Price: US $1.00/KG
Min. Order: 1KG
Purity: Min98% HPLC
Supply Ability: g/kg/ton
Release date: 2020-01-29

130-23-4, N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl ureaRelated Search:

Nickel bis(sulphamidate) Molasses Glycine Ammonium sulfamate 6-Aminocaproic acid Sulfamic acid monosodium salt 4-Amino-benzenesulfonic acid monosodium salt Sulfanilic acid Sulfamic acid 1-AMINO-8-NAPHTHOL-2,4-DISULFONIC ACID MONOSODIUM SALT 4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid BLACK PN 8-AMINO-1-NAPHTHOL-3,6-DISULFONIC ACID,1-AMINO-8-NAPHTHOL-3,6-DISULFONIC ACID 8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate Trypan Blue 6-Amino-1-naphthol-3,5-disulfonic acid,3-amino-8-naphthol-4,6-disulfonic acid,2-amino-5-naphthol-1,7-disulfonic acid 8-AMINO-1-NAPHTHOL-3,6-DISULFONIC ACID MONOSODIUM SALT N-HYDRATE,4-AMINO-5-NAPHTHOL-2,7-DISULFONIC ACID MONOSODIUM SALT HYDRATE LIGNIN PINK

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