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Chlorophosphonazo III

CAS No.
1914-99-4
Chemical Name:
Chlorophosphonazo III
Synonyms
CPA-Ⅲ;Chlorophosphonazo Ⅲ;Chlorophosphonazo 3;hydroxy-;Chlorophosphonazo;Chlorophosphonzo III;Chlorophosphonazo lll;Chlorophosphonazo III;dichlorophosphonoazo III;CHLORPHOSPHONAZO III, HIGH GRADE
CBNumber:
CB9201260
Molecular Formula:
C22H16Cl2N4O14P2S2
Molecular Weight:
757.36
MDL Number:
MFCD00042698
MOL File:
1914-99-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:56:13

Chlorophosphonazo III Properties

Melting point >300oC
Density 2.08±0.1 g/cm3(Predicted)
storage temp. -20°C Freezer, Under inert atmosphere
solubility Methanol (Slightly), Water (Slightly)
pka -1.36±0.40(Predicted)
form Solid
color Black
BRN 2934871
InChIKey LMBABJNSZGKTBA-UHFFFAOYSA-N
SMILES C1=C2C(C(O)=C(N=NC3=CC=C(Cl)C=C3P(O)(O)=O)C(S(O)(=O)=O)=C2)=C(O)C(N=NC2=CC=C(Cl)C=C2P(O)(O)=O)=C1S(O)(=O)=O
CAS DataBase Reference 1914-99-4(CAS DataBase Reference)
EPA Substance Registry System 2,7-Naphthalenedisulfonic acid, 3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-dihydroxy- (1914-99-4)
UNSPSC Code 12000000
NACRES NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)  Health Hazard (GHS08)
GHS08
Signal word  Warning
Hazard statements  H351
Precautionary statements  P201-P202-P281-P308+P313-P405-P501
PPE Eyeshields, Gloves, type N95 (US)
Safety Statements  22-24/25
WGK Germany  3
TSCA  TSCA listed
Storage Class 11 - Combustible Solids

Chlorophosphonazo III price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 26049 Chlorophosphonazo III for spectrophotometric det. of alkaline earth metals 1914-99-4 1g $987 2026-04-30 Buy
TRC TRC-C375385-500MG Chlorophosphonazo III (Technical Grade) 1914-99-4 500mg $496 2026-06-03 Buy
TRC TRC-C375385-250MG Chlorophosphonazo III (Technical Grade) 1914-99-4 250mg $298 2026-06-03 Buy
TRC TRC-C375385-1G Chlorophosphonazo III (Technical Grade) 1914-99-4 1g $937 2026-06-03 Buy
Biosynth FC32384 Chlorophosphonazo III 1914-99-4 0.5g $189.07 2026-06-04 Buy
Product number Packaging Price Buy
26049 1g $987 Buy
TRC-C375385-500MG 500mg $496 Buy
TRC-C375385-250MG 250mg $298 Buy
TRC-C375385-1G 1g $937 Buy
FC32384 0.5g $189.07 Buy

Chlorophosphonazo III Chemical Properties, Uses, Production

Uses

Chlorophosphonazo III was used as a chromogenic agent along with PVC, during the determination of calcium via a disposable optical sensor.

General Description

Chlorophosphonazo III is a highly sensitive reagent and can be used for the spectrophotometric determination of zirconium, titanium, thorium and scandium. It also finds application as an extractant, along with 1-butanol as solvent, for determination of micromolar concentrations of Nd(III), Th(IV) and U(VI) in brine. Above all that, it has two long wavelength maxima, one at 620 nm and one at 680 nm.

Chlorophosphonazo III Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 190)
Supplier Tel Email Country ProdList Advantage
Shanghai Yihe Biological Technology Co., Ltd. 021-68882955 17721395025 2423903095@qq.com China 5163 58
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11775 60
Adamas Reagent, Ltd. 4006009262 13023226327 hmj@titansci.com China 14098 59
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123 sj_scrc@sinopharm.com China 9791 79
Maya High Purity Chemicals +86 (573) 82222445 (0)18006601000 452520369 sales@maya-r.com China 11693 57
ShangHai YuanYe Biotechnology Co., Ltd. 18916372613 shyysw007@163.com China 4993 60
9ding chemical ( Shanghai) Limited 4009209199 sales@9dingchem.com China 22497 55

View Latest Price from Chlorophosphonazo III manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
CHLOROPHOSPHONAZO III pictures 2026-09-02 CHLOROPHOSPHONAZO III
1914-99-4
$5.00 1KG 98% Henan Fengda Chemical Co., Ltd
CHLOROPHOSPHONAZO III pictures 2025-06-27 CHLOROPHOSPHONAZO III
1914-99-4
1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
CHLOROPHOSPHONAZO III pictures 2019-07-12 CHLOROPHOSPHONAZO III
1914-99-4
$1.00 1KG 99% 25kg Career Henan Chemical Co
2,7-naphthalenedisulfonicacid,3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-di hydroxy- BIS(4-CHLORO-2-PHOSPHONOBENZOLAZO)CHROMO-TROPIC ACID 3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-dihydroxynaphthalene-2,7-disulphonic acid CHLORPHOSPHONAZO III, HIGH GRADE 2,7-Bis(4-chloro-2-phosphonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonicacid,disodiumsalt dichlorophosphonoazo III Chlorophosphonazo 3,6-Bis(4-chloro-2-phosphonophenylazo)-4,5-dihydroxynaphthalene-2,7-disulfonic acid Chlorophosphonazo III,Bis(4-chloro-2-phosphonobenzolazo)chromotropic acid 2,7-Naphthalenedisulfonicacid, 3,6-bis[2-(4-chloro-2-phosphonophenyl)diazenyl]-4,5-dihydroxy- Chlorophosphonzo III Chlorophosphonazo III (Technical Grade) 2,7-Bis(4-chloro-2-phosphonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic 3,6-bis[(4-chloro-2-phosphonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonicaci Chlorophosphonazo III for Spectrophotometry 3,6-bis[(4-chloro-2-phosphonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid 2,7-Naphthalenedisulfonic acid, 3,6-bis[(4-chloro-2-phosphonophenyl)azo]-4,5-dihydroxy- 2,7-Bis(4-chloro-2-phosphonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid Chlorophosphonazo lll Chlorophosphonazo Ⅲ Chlorophosphonazo 3 CPA-Ⅲ Chlorophosphonazo III 1914-99-4 C22H16Cl2N4O14P2S2 C22H16Cl2N4O14P2S24H2O Analytical Reagents Analytical Chromatography Product Catalog Spectroscopy Reagents IR/UV/ VIS