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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 45038913Generated: October 29, 2026

Desthiazolylmethyl ritonavir

Ritonavir EP IMP L · RITOVIR IMPURITY L · RitonavirEP ImpurityL · Ritonavir Impurity 12 · Desthiazolylmethyl Ritonavi · Desthiazolylmethyl ritonavir · Ritonavir EP Impurity L(BP Impurity L) · Ritonavir Impurity 12(Ritonavir EP Impurity L)

https://huagongshe.com/en/chemical/45038913

Desthiazolylmethyl ritonavir molecular structure

Identifiers & Physical Properties

CAS No.256328-82-2
Molecular formulaC33H43N5O4S
Average molar mass605.8 g/mol
Monoisotopic mass605.30357604 g/mol
SMILESCC(C)c1nc(CN(C)C(=O)N[C@H](C(=O)N[C@@H](Cc2ccccc2)C[C@@H]2OC(=O)N[C@H]2Cc2ccccc2)C(C)C)cs1
InChIKeyYIFUFODEQQNFLV-AMEOFWRWSA-N
PubChem CID45038913
DTXSIDDTXSID00180311

Chemical & Physical Properties

XLogP5.9
Topological polar surface area141
Hydrogen bond donors3
Hydrogen bond acceptors6
Rotatable bonds13
Heavy atoms43
Formal charge0
Complexity908
Melting point65-69°C
Boiling point874.0±65.0 °C(Predicted)
Density1.185±0.06 g/cm3(Predicted)
Storage conditionsRefrigerator
SolubilityChloroform (Slightly), DMSO (Slightly, Sonicated), Methanol (Slightly)
Physical stateSolid
pKa (acidity coefficient)12.40±0.46(Predicted)
ColorWhite to Off-White
FDA UNIIJ289RGF13S
GHS pictogramGHS08
Signal wordWarning
GHS hazard statementsH351-H361
GHS precautionary statementsP201-P202-P280-P308+P313-P405-P501

Safety & Regulations

Signal wordWarning
GHS pictogramGHS08
GHS hazard statementsH351-H361
GHS precautionary statementsP201-P202-P280-P308+P313-P405-P501

Applications & Uses

Uses

Desthiazolylmethyl Ritonavir (Ritonavir EP Impurity L) is an analogue of the selective HIV protease inhibitor Ritonavir (R535000). It is a COVID19-related research product.