Bronopol CAS No.52-51-7

Bronopol (2-Bromo-2-nitro-1,3-propanediol)

CAS No.: 52-51-7 | EC No.: 200-143-0

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1. Chemical Identification

Property	Specification
IUPAC Name	2-Bromo-2-nitropropane-1,3-diol
Molecular Formula	C₃H₆BrNO₄
Molecular Weight	199.99 g/mol
MDL Number	MFCD00007390

Synonyms:
BNPD, Bioban, β-Bromo-β-nitrotrimethyleneglycol

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2. Physical Properties

Parameter	Value
Appearance	White crystalline powder
Melting Point	130-133°C (with decomposition)
Solubility	250 g/L in water (20°C)
pH	5.0-7.0 (1% solution)

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3. Applications

Preservative Systems

Cosmetics:
✓ Shampoos & personal care products
✓ Microbial control in water-based formulationsIndustrial:
✓ Paper mill slimicide
✓ Cooling water treatment

Specialty Uses

Laboratory reagentAntimicrobial additive

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4. Safety Information

Hazard Statements:

H302: Harmful if swallowedH315: Causes skin irritationH317: May cause allergic skin reaction

Precautionary Measures:

P280: Wear protective gloves/clothingP301+P312: IF SWALLOWED: Call poison centerP333+P313: If skin irritation occurs: Get medical advice

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