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Hydrochlorothiazide

CAS Number
58-93-5
EC Number
200-403-3
Chemical Formula
C7H8ClN3O4S2
Molecular Weight
297.7 g/mol

Description

Hydrochlorothiazide (CAS 58-93-5 ), commonly abbreviated as HCTZ, is a thiazide diuretic active pharmaceutical ingredient used in the treatment of hypertension and edema. It is one of the most established antihypertensive APIs in global pharmaceutical manufacturing, appearing in both standalone formulations and fixed-dose combinations. HCTZ is a primary active ingredient in oral solid dosage forms, such as tablets and capsules, targeting cardiovascular and renal indications for patients worldwide. Fixed-dose combination products pairing HCTZ with ACE inhibitors, ARBs, or beta-blockers represent a major share of its commercial demand in the pharmaceutical sector. Generic pharmaceutical manufacturers source it as a finished API for direct compression or wet granulation processes to ensure efficient production cycles. Contract formulators also use it as a reference standard component in bioequivalence and analytical method development for various regulatory submission requirements. Hydrochlorothiazide is supplied as a white to off-white crystalline powder. It is available in USP , BP , and Ph. Eur. compendial grades to meet global standards. Micronized grades are available where particle size control is critical to dissolution performance and content uniformity in finished dosage forms for high-quality manufacturing. Contact us for supply of Hydrochlorothiazide Request Quote

Other Names (Synonyms)

chlorsulfonamidodihydrobenzothiadiazine dioxide | 6-chloro-1,1-dioxo-3,4-dihydro-2H-1λ6,2,4-benzothiadiazine-7-sulfonamide | 3,4-dihydrochlorothiazide | Esidrix | HCTZ | Vetidrex | 2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3,4-dihydro-, 1,1-dioxide | Su 5879

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point273-275 °C
Boiling Point577.0±60.0 °C(Predicted)
Density1.512 g/cm³ (Liquid)
Flash Point9°C
AppearanceWhite Solid
ColorWhite to Off-White
Odorwh. or pract. wh. cryst. powd., odorless
Formsolid
Water Solubility722mg/L(25 ºC)
Refractive Index1.6100 (estimate)
Log P-0.070

Safety & Handling

Danger
GHS07· IrritantGHS08· Health Hazard

Hazard Statements

H302Harmful if swallowed
H317May cause an allergic skin reaction
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H372Causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P233Keep container tightly closed.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P403Store in a well-ventilated place.
P501Dispose of contents/container in accordance with local regulations.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P316Get emergency medical help immediately.
P364Take off contaminated clothing and wash it before reuse.

Trade & Regulatory

HS Code29350090
UN Number1230
ADR Class3
Packing GroupII
Storage Class11 - Combustible Solids
WGK (Germany)2