ChemicalBook >> CAS DataBase List >>Chlorophosphonazo III
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
| 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) | ![]() 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 |
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 | 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 | |
|---|---|---|---|---|---|---|---|---|
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2026-09-02 | CHLOROPHOSPHONAZO III
1914-99-4
|
$5.00 | 1KG | 98% | Henan Fengda Chemical Co., Ltd | ||
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2025-06-27 | CHLOROPHOSPHONAZO III
1914-99-4
|
1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd | ||
![]() |
2019-07-12 | CHLOROPHOSPHONAZO III
1914-99-4
|
$1.00 | 1KG | 99% | 25kg | Career Henan Chemical Co |
-

- CHLOROPHOSPHONAZO III
1914-99-4
- $5.00
- 98%
- Henan Fengda Chemical Co., Ltd
-

- CHLOROPHOSPHONAZO III
1914-99-4
- $0.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-

- CHLOROPHOSPHONAZO III
1914-99-4
- $1.00
- 99%
- Career Henan Chemical Co
1914-99-4 (Chlorophosphonazo III) Related Search:
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





