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

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

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Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
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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