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

CAS 5381-99-7C7H4ClO3PCatalysis & Inorganic

2-Chloro-1,3,2-benzodioxaphosphorin-4-one (CAS 5381-99-7) is a phosphorus-containing organic compound with the molecular formula C7H4ClO3P and a molecular weight of 202.53 g/mol. This compound serves as a valuable reagent in chemical synthesis, primarily for phosphorylation and phosphitylation reactions involving alcohols. It is also employed in the formation of H-phosphonates. Tech Serve Solutions supplies this chemical with an assay of 95%.

IUPAC
SalPCl,Salicyl chlorophosphite
Synonyms
5381-99-7C7H4ClO3PSalPClSalicyl chlorophosphite
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2-Chloro-1,3,2-benzodioxaphosphorin-4-one (C7H4ClO3P) — chemical structure, CAS 5381-99-7; Chemistry, fine chemical supplied by Tech Serve Solutions
Chemical SynthesisPhosphine CompoundsPhosphorus Precursors
01 /Applications

Phosphorylation and Phosphitylation

This compound acts as an effective reagent for introducing phosphoryl or phosphityl groups onto alcohol molecules. This process is crucial in the synthesis of various organophosphorus compounds.

H-Phosphonate Formation

It is utilized in the synthesis of H-phosphonates, which are important intermediates in organic chemistry, particularly in the development of nucleoside analogues and other biologically active molecules.

Reagent in Organic Synthesis

As a versatile organophosphorus compound, it finds application in a range of synthetic methodologies within academic and industrial research settings.

02 /Properties
Molecular weight202.53
Empirical formulaC7H4ClO3P
Assay95%
Boiling point127-128 °C/11 mmHg(lit.)
Storage temperature2-8°C
ApplicationReagent used in phosphorylation and phosphitylation of alcohols and in the formation of H-phosphonates.
Melting point36-40 °C(lit.)
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
Danger

Hazard statements

  • H314Causes severe skin burns and eye damage

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentEyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Flash point113 °C / 235.4 °F
Transport (UN / ADR)UN 3261 8 / PGI
Water hazard class (WGK, DE)3
Hazard codes (EU)C
Risk statements (R)14-34
Safety statements (S)26-36/37/39-43-45
Supplemental hazardsReacts violently with water.

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
5381-99-7
MDL number
MFCD00013353
PubChem substance
24859425
Beilstein registry
1311951
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 2-Chloro-1,3,2-benzodioxaphosphorin-4-one used for?

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2-Chloro-1,3,2-benzodioxaphosphorin-4-one (CAS 5381-99-7) is used as a reagent in phosphorylation and phosphitylation of alcohols, and in the formation of H-phosphonates.

What is the CAS number and molecular formula for 2-Chloro-1,3,2-benzodioxaphosphorin-4-one?

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The CAS number is 5381-99-7 and the empirical formula is C7H4ClO3P.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies 2-Chloro-1,3,2-benzodioxaphosphorin-4-one with an assay of 95%. This product is not intended for USP, BP, EP, or other pharmacopoeia applications unless explicitly stated.

How should 2-Chloro-1,3,2-benzodioxaphosphorin-4-one be handled safely?

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This compound is classified as Danger (GHS05) and causes severe skin burns and eye damage (H314). It reacts violently with water. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, must be used. Handle only in well-ventilated areas or under a fume hood, and keep away from moisture.

Is this product regulated or scheduled?

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Based on the provided data, there is no indication of specific controlled substance scheduling. However, users should always verify local regulations.

How is 2-Chloro-1,3,2-benzodioxaphosphorin-4-one packed and shipped?

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As a global supplier, Tech Serve Solutions adheres to all relevant shipping regulations for hazardous materials, ensuring safe and compliant packing and export.

How can I request a sample or quote for 2-Chloro-1,3,2-benzodioxaphosphorin-4-one?

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To request a sample or obtain a quotation, please contact our sales department through the website or by phone, providing the product name and CAS number (5381-99-7).

Need 2-Chloro-1,3,2-benzodioxaphosphorin-4-one in a specific grade or volume?