Hydrochlorothiazide

(Last updated April 2026)

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Figure . The molecular diagram of Hydrochlorothiazide.

CSP studies

REFCODEHCSBTZ
FormulaC7 H8 N3 O4 Cl1 S2
Common Namehydrochlorothiazide
IUPAC Systematic Name6-Chloro-7-sulfamyl-3,4-dihydro-1,2,4-benzothiadiazine 1,1-dioxide
Other Names6-Chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide
CSD RefcodesHCSBTZ08, HCSBTZ02
Search IdentifierA
ScientistSally Price
Datepre-2010
PublicationNo publication planned.
Energy model1
Study_ID0
ProgramsMOLPAK, DMAREL (4.1.1)
Location on S Drive\\CHEMISTRY_CPOSS\\0-EarlySearches\\home\\louise_price.eminerals\\hydrochlorothiazide
Potential DescriptionMP2 6-31G(d,p) DMA + SONClfit.pots
Intramolecular DescriptionMP2 energy for SCF 6-31G(d,p) optimised

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Figure . Crystal energy landscape of Hydrochlorothiazide from previous work.

CSD structures (CSD version 6.01 with Feb 2026 update)

Table . Crystallographic information for CSD entries for Hydrochlorothiazide. Different polymorphs are coloured differently.

REFCODEspace groupZ’a / Åb / Åc / Åα / °β / °γ / °density / g cm-3Form
HCSBTZP211.07.419008.52110.00390.0111.7290.01.6831Form I
HCSBTZ01P21/c1.09.48848.3334015.130990.0113.2087090.01.7985P21/c Form II
HCSBTZ02P21/c1.09.48558.332515.120190.0113.2400090.01.8009Form II
HCSBTZ03P211.07.340108.50779.964390.0111.3320090.01.7059Form I
HCSBTZ04P21/c1.09.46898.24215.063690.0113.06290.01.8283Form II
HCSBTZ05P211.07.38228.4599.95890.0111.7000090.01.7114Form I
HCSBTZ06P211.07.394908.509610.004690.0111.62290.01.6895Form IA
HCSBTZ07P211.07.33228.50319.952990.0111.28290.01.7101Form I
HCSBTZ08P211.07.332308.50319.95290.0111.28190.01.7102Form I
HCSBTZ09P211.07.32888.503209.9467090.0111.2990.01.7120Form I
HCSBTZ10P211.07.38568.50219.9958090.0111.60790.00.0Form I

Table . Experimental information for CSD entries for Hydrochlorothiazide.

REFCODEspace groupR factorT / KYearComments
HCSBTZP216.600None197210.1107/S0567740872006090
HCSBTZ01P21/c1.3at 298 K2005powder, 10.1107/S1600536805023640
HCSBTZ02P21/c1.660at 295 K2008neutron, powder, 10.1107/S010876810705687X
HCSBTZ03P213.52at 123 K200810.1107/S010876810705687X
HCSBTZ04P21/c2.98at 123 K200810.1107/S010876810705687X
HCSBTZ05P213.070200 K201610.3109/10837450.2015.1041040
HCSBTZ06P213.85296 K201610.3109/10837450.2015.1041040
HCSBTZ07P213.91100 K2019neutron, 10.1002/anie.201905085
HCSBTZ08P212.139100.0 K201910.1002/anie.201905085
HCSBTZ09P213.2100 K202110.1107/S2052520621009914
HCSBTZ10P214.36270 K201610.3109/10837450.2015.1041040

Make this table include whether polymorphs are solution-grown, sublimation grown, templated or otherwise. Add references.

Other notes

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