HYDROXYNAPHTHOL BLUE

Product Name: HYDROXYNAPHTHOL BLUE
CAS No.: 63451-35-4
Chemical Name: HYDROXYNAPHTHOL BLUE
Synonyms: Hnb;Hydroxynapthol Blue;Hydroxy phthol Blue;HYDROXYNAPHTHOL BLUE;CALVER(R) 2 CALCIUM INDICATOR;HYDROXYNAPHTHOL BLUE INDICATOR;Hydroxynaphthol blue indicator 5GM;HYDROXYNAPHTHOL BLUE TRISODIUM SALT;Hydroxynaphthol blue indicator 25GM;Hydroxynapthol Blue (Technical Grade)
CBNumber: CB2399001
Molecular Formula: C20H15N2NaO11S3
Formula Weight: 578.51
MOL File: 63451-35-4.mol

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HYDROXYNAPHTHOL BLUE Property

bulk density: 330kg/m3
storage temp.: Store at +15°C to +30°C.
solubility: 340g/l
form: Solid
color: Dark Gray
PH: 2-3 (10g/l, H2O, 20℃)
Water Solubility: 340g/L
Stability:: Stable. Incompatible with strong oxidizing agents.
InChIKey: FJVFMVUPIAARMA-ZPZFBZIMSA-N
SMILES: N(/C1=C(C(S(O)(=O)=O)=CC2=CC(S(O)(=O)=O)=CC=C12)O)=N\C1=C(C=C(S(O)(=O)=O)C2=CC=CC=C12)O.[NaH]
CAS DataBase Reference: 63451-35-4(CAS DataBase Reference)
EPA Substance Registry System: 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-, trisodium salt (63451-35-4)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36
WGK Germany: WGK 3 highly water endangering
TSCA: TSCA listed
HS Code: 2927 00 00
Storage Class: 8A - Combustible corrosive hazardous materials
Hazard Classifications: Eye Dam. 1
Skin Corr. 1

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

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

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.

P363Wash contaminated clothing before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 1.04593
Product name: Hydroxynaphthol blue
Purity: metal (pM) indicator
Packaging: 25g
Price: $703
Updated: 2025/07/31

Sigma-Aldrich

Product number: HX0847
Product name: Hydroxynaphthol Blue
Packaging: 25g
Price: $696
Updated: 2022/05/15

TRC

Product number: H950260
Product name: HydroxynaptholBlue(TechnicalGrade)
Packaging: 2.5g
Price: $105
Updated: 2021/12/16

TRC

Product number: H950260
Product name: HydroxynaptholBlue(TechnicalGrade)
Packaging: 10g
Price: $340
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: DYE0015120
Product name: HYDROXYNAPHTHOL BLUE
Purity: 95.00%
Packaging: 500MG
Price: $562.72
Updated: 2021/12/16

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HYDROXYNAPHTHOL BLUE Chemical Properties,Usage,Production

Description

Hydroxynaphthol blue, a well-known pH indicator in the field of biomedicine, is employed to accurately quantify pH fluctuations in various biological specimens. Besides, its utility extends to serving as a colorimetric reagent, notably in laboratory settings, aiding in the identification of select pharmaceuticals and ailments.

Chemical Properties

blue crystalline powder

Uses

Hydroxynapthol Blue is a pharmaceutical dye used in colorimetric analyses.

Purification Methods

The crude material is treated with hot EtOH to remove soluble impurities, then dissolve in 20% aqueous MeOH and chromatographed on a cellulose powder column with propanol/EtOH/water (5:5:4) as eluent. The upper of three zones was eluted to give the pure dye which is precipitated as the monosodium salt trihydrate by adding conc HCl to the concentrated eluate [Ito & Ueno Analyst 95 583 1970]. It can be converted to the trisodium salt wih the calculated amount of alkali. Indigocarmine (2[1,3-dihydro-3-oxo-5-sulfo-2H -indol-2-ylidene]-2,3-dihydro-3-oxo-1H -

HYDROXYNAPHTHOL BLUE Preparation Products And Raw materials

Raw materials

Preparation Products

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HYDROXYNAPHTHOL BLUE Suppliers

China 133 Europe 2 Germany 2 India 14 Japan 1 Mexico 1 Switzerland 1 United Kingdom 3 United States 20 Global 177

NANTONG XINHE BIOTECH CO.,LTD

Tel: 13813727166，15370460228; 13813727166
Email: sale_xinhe@outlook.com
Country: China
ProdList: 374
Advantage: 58

BIOISCO(Lianyungang, Jiangsu) Biotechnology Co., Ltd

Tel: 18082049515
Email: 2757382053@qq.com
Country: China
ProdList: 2965
Advantage: 58

3B Pharmachem (Wuhan) International Co.,Ltd.

Tel: 821-50328103-801 18930552037
Fax: 86-21-50328109
Email: 3bsc@sina.com
Country: China
ProdList: 15838
Advantage: 69

Adamas Reagent, Ltd.

Tel: 400-6009262 16621234537
Fax: 021-64823266
Email: chenyj@titansci.com
Country: China
ProdList: 14101
Advantage: 59

Shandong Xiya Chemical Co., Ltd

Tel: 13355009207 13355009207
Fax: 0539-6365991
Email: 3007715519@qq.com
Country: China
ProdList: 18729
Advantage: 57

Sichuan Kulinan Technology Co., Ltd

Tel: 400-1166-196 18981987031
Fax: 028-84555506 800101999
Email: cdhxsj@163.com
Country: China
ProdList: 11705
Advantage: 57

ShangHai YuanYe Biotechnology Co., Ltd.

Tel: 021-61312847 13636370518
Fax: 021-55068248
Email: shyysw007@163.com
Country: China
ProdList: 4999
Advantage: 60

9ding chemical ( Shanghai) Limited

Tel: 4009209199
Fax: 86-021-52271987
Email: sales@9dingchem.com
Country: China
ProdList: 22514
Advantage: 55

Shanghai Aladdin Bio-Chem Technology Co.,LTD

Tel: 400-6206333 13167063860
Fax: 021-50323701
Email: anhua.mao@aladdin-e.com
Country: China
ProdList: 25687
Advantage: 65

Shanghai Ruji Biology Technology Co., Ltd.

Tel: +86-21-65211385-8001 36031160
Fax: +86-21-65211385-8004
Email: sales@shruji.com
Country: China
ProdList: 3224
Advantage: 55

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View Lastest Price from HYDROXYNAPHTHOL BLUE manufacturers

Jiangsu Boquan Biotechnology Co., Ltd.

Product: HYDROXYNAPHTHOL BLUE 63451-35-4
Price: US $1457.00-1240.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 100kg
Release date: 2023-02-21

Career Henan Chemical Co

Product: Hydroxynaphthol blue 63451-35-4
Price: US $1.00/kg
Min. Order: 1kg
Purity: 95%-99%
Supply Ability: 1000kg
Release date: 2018-12-25

63451-35-4, HYDROXYNAPHTHOL BLUERelated Search:

HYDROXY NAPHTHOL BLUE Acid Orange 7 CROCEIN ORANGE G Naphthionic acid 2,2'-DIHYDROXYAZOBENZENE Acid Red 27 3-Hydroxynaphthalene-2,7-disulphonic acid Sodium 1-amine-2-naphthol-4-sulfonate Sodium 4-amino-1-naphthalenesulfonate Mordant Black 17 Sudan I Sodium 6-hydroxynaphthalene-2-sulfonate 1-Amino-2-naphthol-4-sulfonic acid 1-Aminonaphthalene-6-sulfonic acid Disodium 2-naphthol-3,6-disulfonate ACID RED 88 HYDROXYNAPHTHOL BLUE Food Yellow 3:1

7-naphthalenedisulfonicacid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-trisodiumsalt

HYDROXYNAPHTHOL BLUE

HYDROXYNAPHTHOL BLUE INDICATOR

HYDROXYNAPHTHOL BLUE TRISODIUM SALT

CALVER(R) 2 CALCIUM INDICATOR

3-HYDROXY-4-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO)NAPHTHALENE-2,7-DISULFONIC ACID TRISODIUM SALT

1-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO)-2-NAPHTHOL-3,6-DISULFONIC ACID TRISODIUM SALT

1-(2-NAPHTHOLAZO-3,6-DISULFONIC ACID)-2-NAPHTHOL-4-SULFONIC ACID DISODIUM SALT

2,2'-DIHYDROXY-1,1'-AZONAPHTHALENE-3,4,6'-TRISULFONIC ACID TRISODIUMSALT

trisodium 3-hydroxy-4-[(2-hydroxy-4-sulphonato-1-naphthyl)azo]naphthalene-2,7-disulphonate

Hnb

Hydroxy-1-(2-Hydroxy-4-Sulfo-1-Naphthylazo)-3,6-NaphthalenedIsulfonicAcidTrisodiumSalt

HydroxyethylCelluloseHighViscosity(10)

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-(2-hydroxy-4-sulfo-1-naphthalenyl)azo-, trisodium salt

2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalenedisulfonicacid,trisodiumsalt

2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalenedisulfonic aci

1-(2-Hydroxy-4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid trisodium salt, 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2,7-disulfonic acid trisodium salt

3-Hydroxy-4-[(2-hydroxy-4-sodiosulfonaphthalen-1-yl)azo]-2,7-naphthalenedisulfonic acid disodium salt

Hydroxynaphthol blue,1-(2-Hydroxy-4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid trisodium salt, 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2,7-disulfonic acid trisodium salt

HYDROXYNAPHTHOL BLUE METAL (PM) INDICATO

2,7-Naphthalenedisulfonicacid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt(1:3)

Hydroxy naphthol blue indicator solution

Hydroxynapthol Blue

3-Hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt

Hydroxynaphthol blue,indicator for metal titration

Hydroxynapthol Blue (Technical Grade)

Hydroxynaphthol blue indicator 5GM

Hydroxynaphthol blue indicator 25GM

HYDROXY NAPHTHOL BLUE Indicator grade

Sodium (E)-3-Hydroxy-4-[(2-hydroxy-4-sulfonato-1-naphthyl)diazenyl]naphthalene-2,7-disulfonate

Hydroxy phthol Blue

2,7-phthalenedisulfonicacid, 3-hydroxy-4-[2-(2-hydroxy-4-sulfo-1-phthalenyl)diazenyl]-, sodium salt(1:3)

63451-35-4

C20H11N2O11S33Na

C20H11N2Na3O11S3

Organics