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ChemicalBook >> CAS DataBase List >> 2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one

2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one

2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one price.
  • $21 - $1097
  • Product name: 2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one
  • CAS: 5381-99-7
  • MF: C7H4ClO3P
  • MW: 202.53
  • EINECS:
  • MDL Number:MFCD00013353
  • Synonyms:VAN BOOM'S REAGENT;ChloroHbenzodioxaphosphorinone;2-Chloro-4H-1,2,3-benzodioxaphosphorin-4-one 90%;2-CHLORO-4H-1,3,2-BENZODIOXAPHOSPHORIN-4-ONE 97%;NSC 40209;Salicylchlorophosphite Van Boom's Reagent;2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one;2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one, Salicyl chlorophosphite
Price35 Properties Safety Information Description
35 prices
Selected condition：
Brand
  • ACHEMBLOCK
  • AHH
  • AK Scientific
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Arctom
  • Chem-Impex
  • Matrix Scientific
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • SynQuest Laboratories
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
  • Usbiological
Package
  • 1g
  • 5G
  • 10g
  • 25G
  • 50g
  • 100g
  • ManufacturerACHEMBLOCK
  • Product numberT99633
  • Product description2-chloro-2,4-dihydro-1,3,2-benzodioxaphosphinin-4-one 97%
  • Packaging25G
  • Price$270
  • Updated2026-05-27
  • Buy
  • ManufacturerAHH
  • Product numberMT-04758
  • Product description2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one 97%
  • Packaging100g
  • Price$338
  • Updated2026-05-26
  • Buy
  • ManufacturerAK Scientific
  • Product numberZ3543
  • Product description2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one
  • Packaging25g
  • Price$288
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberHCH0019201
  • Product description2-CHLORO-4H-1,3,2-BENZODIOXAPHOSPHORIN-4-ONE 95.00%
  • Packaging5G
  • Price$776.95
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR3651T
  • Product description2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95%
  • Packaging100g
  • Price$806
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR3651T
  • Product description2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95%
  • Packaging1g
  • Price$21
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR3651T
  • Product description2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95%
  • Packaging5g
  • Price$59
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR3651T
  • Product description2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95%
  • Packaging25g
  • Price$233
  • Updated2026-06-04
  • Buy
  • ManufacturerArctom
  • Product numberBD-A171536
  • Product description2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95%
  • Packaging5g
  • Price$80
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberBD-A171536
  • Product description2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95%
  • Packaging1g
  • Price$24
  • Updated2026-05-26
  • Buy
  • ManufacturerArctom
  • Product numberBD-A171536
  • Product description2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95%
  • Packaging25g
  • Price$258
  • Updated2026-05-26
  • Buy
  • ManufacturerChem-Impex
  • Product number37311
  • Product description2-Chloro-1,3,2-benzodioxaphosphorin-4-one ≥97%(Assaybytitration)
  • Packaging25G
  • Price$232.45
  • Updated2026-05-19
  • Buy
  • ManufacturerChem-Impex
  • Product number37311
  • Product description2-Chloro-1,3,2-benzodioxaphosphorin-4-one ≥97%(Assaybytitration)
  • Packaging1G
  • Price$29.34
  • Updated2026-05-19
  • Buy
  • ManufacturerChem-Impex
  • Product number37311
  • Product description2-Chloro-1,3,2-benzodioxaphosphorin-4-one ≥97%(Assaybytitration)
  • Packaging5G
  • Price$77.62
  • Updated2026-05-19
  • Buy
  • ManufacturerMatrix Scientific
  • Product number098853
  • Product description2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95+%
  • Packaging25g
  • Price$165
  • Updated2021-12-16
  • Buy
  • ManufacturerMatrix Scientific
  • Product number098853
  • Product description2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95+%
  • Packaging5g
  • Price$55
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
ACHEMBLOCK T99633 2-chloro-2,4-dihydro-1,3,2-benzodioxaphosphinin-4-one 97% 25G $270 2026-05-27 Buy
AHH MT-04758 2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one 97% 100g $338 2026-05-26 Buy
AK Scientific Z3543 2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one 25g $288 2021-12-16 Buy
American Custom Chemicals Corporation HCH0019201 2-CHLORO-4H-1,3,2-BENZODIOXAPHOSPHORIN-4-ONE 95.00% 5G $776.95 2021-12-16 Buy
Apolloscientific OR3651T 2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95% 100g $806 2026-06-04 Buy
Apolloscientific OR3651T 2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95% 1g $21 2026-06-04 Buy
Apolloscientific OR3651T 2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95% 5g $59 2026-06-04 Buy
Apolloscientific OR3651T 2-Chloro-4H-1,3,2-benzodioxaphosphinin-4-one >95% 25g $233 2026-06-04 Buy
Arctom BD-A171536 2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95% 5g $80 2026-05-26 Buy
Arctom BD-A171536 2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95% 1g $24 2026-05-26 Buy
Arctom BD-A171536 2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95% 25g $258 2026-05-26 Buy
Chem-Impex 37311 2-Chloro-1,3,2-benzodioxaphosphorin-4-one ≥97%(Assaybytitration) 25G $232.45 2026-05-19 Buy
Chem-Impex 37311 2-Chloro-1,3,2-benzodioxaphosphorin-4-one ≥97%(Assaybytitration) 1G $29.34 2026-05-19 Buy
Chem-Impex 37311 2-Chloro-1,3,2-benzodioxaphosphorin-4-one ≥97%(Assaybytitration) 5G $77.62 2026-05-19 Buy
Matrix Scientific 098853 2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95+% 25g $165 2021-12-16 Buy
Matrix Scientific 098853 2-Chloro-4H-benzo[d][1,3,2]dioxaphosphinin-4-one 95+% 5g $55 2021-12-16 Buy
Next Last

Properties

Melting point :36-40 °C (lit.)
Boiling point :127-128 °C/11 mmHg (lit.)
Flash point :>230 °F
storage temp. :2-8°C
solubility :Soluble in acetonitrile, dichloromethane, tetrahydrofuron and dimethylformamide.
form :solid
color :White or Colorless to Orange to Green
BRN :1311951
Stability :Water Sensitive
InChI :InChI=1S/C7H4ClO3P/c8-12-10-6-4-2-1-3-5(6)7(9)11-12/h1-4H
InChIKey :BVOITXUNGDUXRW-UHFFFAOYSA-N
SMILES :O1C2=CC=CC=C2C(=O)OP1Cl
CAS DataBase Reference :5381-99-7(CAS DataBase Reference)

Safety Information

Symbol(GHS): Corrosion (GHS05)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363 Wash contaminated clothing before reuse.

Description

2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one is a reagent used in phosphorylation and phosphitylation of alcohols and in the formation of H-phosphonates. It is also reactive cyclic phosphitylating reagent involved in fast coupling rates and hydrolytic cleavage more readily compare to that of a acyclic analog.

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Suppliers and manufacturers

J & K SCIENTIFIC LTD. Meryer (Shanghai) Chemical Technology Co., Ltd. 3B Pharmachem (Wuhan) International Co.,Ltd. Alfa Aesar TCI (Shanghai) Development Co., Ltd. Energy Chemical Beijing Ouhe Technology Co., Ltd Changzhou Huanling Chemical Co., Ltd. Shanghai Hanhong Scientific Co.,Ltd. Chemsky（shanghai）International Co.,Ltd.