Methylenediphosphonic acid
Methylenediphosphonic acid (CAS: 1984-15-2, Formula: CH2[P(O)(OH)2]2) is a key phosphorus-containing organic compound with a molecular weight of 176.00. Characterised as a phosphonic/phosphinic acid, it serves as a valuable building block in chemical synthesis and organic chemistry. Its properties make it suitable for various research and industrial applications where diphosphonic acid functionalities are required. Tech Serve Solutions supplies this compound with a high purity assay of ≥99%.
- IUPAC
- MDP,Medronic acid
- Synonyms
- Medronic acidMDP
![Methylenediphosphonic acid (CH2[P(O)(OH)2]2) — chemical structure, CAS 1984-15-2; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1984-15-2.png&w=3840&q=75)
Chemical Synthesis
Methylenediphosphonic acid acts as a versatile building block in the synthesis of complex organic molecules. Its diphosphonic acid groups allow for further chemical modifications and incorporation into larger structures.
Organic Building Block
As an organic building block, it is utilised in the development of novel compounds with specific phosphorus-based functionalities. This is relevant in areas such as materials science and medicinal chemistry research.
Phosphorus Compound Research
This compound is employed in research focused on phosphorus chemistry, enabling the exploration of new reagents and methodologies involving phosphonic acids.
| Molecular weight | 176.00 |
|---|---|
| Linear formula | CH2[P(O)(OH)2]2 |
| Assay | ≥99% |
| Storage temperature | −20°C |
| Melting point | 197-199 °C(lit.) |

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 equipment | Eyeshields, 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 |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is Methylenediphosphonic acid used for?
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Methylenediphosphonic acid is used as a building block in chemical synthesis and organic chemistry, particularly in research involving phosphorus compounds.
What is the CAS number and chemical formula for Methylenediphosphonic acid?
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The CAS number is 1984-15-2 and the chemical formula is CH2[P(O)(OH)2]2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methylenediphosphonic acid with an assay of ≥99%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for Methylenediphosphonic acid?
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This compound is classified with GHS05 symbol and a Danger signal word, carrying the hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential during handling. Store at -20°C.
How is Methylenediphosphonic acid packed, shipped, and exported?
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This product is shipped and exported in compliance with transportation regulations, identified as UN 3261, Class 8, Packing Group III. Storage is recommended at -20°C.
How can I request a sample or quote for Methylenediphosphonic acid?
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To request a sample or a quote, please contact our sales team through the website or by phone, providing the product name and CAS number.
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