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2975-36-2

2975-36-2 structure
2975-36-2 structure
  • Name: Mepazine hydrochloride
  • Chemical Name: 10H-Phenothiazine,10-[(1-methyl-3-piperidinyl)methyl]-, hydrochloride (1:1)
  • CAS Number: 2975-36-2
  • Molecular Formula: C19H23ClN2S
  • Molecular Weight: 346.91700
  • Catalog: Signaling Pathways Apoptosis Apoptosis
  • Create Date: 2016-08-14 08:04:56
  • Modify Date: 2026-07-07 10:18:07
  • Mepazine hydrochloride (Pecazine hydrochloride) is a potent and selective MALT1 protease inhibitor with IC50s of 0.83 and 0.42 μM for GSTMALT1 full length and GSTMALT1 325-760, respectively. Mepazine hydrochloride affects viability of ABC-DLBCL cells by enhancing apoptosis[1].
Name 10H-Phenothiazine,10-[(1-methyl-3-piperidinyl)methyl]-, hydrochloride (1:1)
Synonyms 10-((1-methylpiperidin-3-yl)methyl)-10H-phenothiazine hydrochloride
MALT1 Inhibitor II, Mazine Hydrochloride
Mazine hydrochloride
10-[(1-methyl-3-piperidyl)methyl]-10H-phenothiazine monohydrochloride
10H-Phenothiazine, 10-[(1-methyl-3-piperidinyl)methyl]-,monohydrochloride
mepazine hydrochloride
Description Mepazine hydrochloride (Pecazine hydrochloride) is a potent and selective MALT1 protease inhibitor with IC50s of 0.83 and 0.42 μM for GSTMALT1 full length and GSTMALT1 325-760, respectively. Mepazine hydrochloride affects viability of ABC-DLBCL cells by enhancing apoptosis[1].
Related Catalog
Target

MALT1[1]

In Vitro Mepazine (5-20 μM; 4 days) causes a decrease of cell viability in the activated B cell subtype of diffuse large B cell lymphoma (ABCDLBCL) cells, without significantly affecting GCB-DLBCL cells[1]. Cell Viability Assay[1] Cell Line: ABC-DLBCL cell lines (HBL1, OCI-Ly3, U2932, TMD8, OCI-Ly10) and GCB-DLBCL cell lines (BJAB, Su-DHL-6, Su-DHL-4) Concentration: 5, 10, and 20 μM Incubation Time: 4 days Result: Caused a decrease of cell viability in the ABC-DLBCL cells HBL1, OCI-Ly3, U2932, and TMD8, without significantly affecting GCB-DLBCL cells.
In Vivo Mepazine (16 mg/kg; intraperitoneal administration) interferes with growth and induces apoptosis of ABC-DLBCL cell line OCI-Ly10 in NOD/scid IL-2Rgnull (NSG) mice with a murine DLBCL xenogeneic tumor model. Daily administration of Mepazine strongly impairs the expansion of the ABC-DLBCL cell line OCI-Ly10[1]. Animal Model: 6- to 8-week-old female NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ (NSG) mice with a murine DLBCL xenogeneic tumor model[1] Dosage: 400 μg per animal (25 g), corresponding to approximately 16 mg/kg Administration: Intraperitoneal administration; started 1 or 12 days after transplantation and given continuously every 24 hr; daily application Result: Daily administration strongly impaired the expansion of the ABC-DLBCL cell line OCI-Ly10.
References

[1]. Nagel D, et al. Pharmacologic inhibition of MALT1 protease by phenothiazines as a therapeutic approach for the treatment of aggressive ABC-DLBCL. Cancer Cell. 2012 Dec 11;22(6):825-37.
Boiling Point 444.4ºC at 760 mmHg
Molecular Formula C19H23ClN2S
Molecular Weight 346.91700
Flash Point 222.6ºC
Exact Mass 346.12700
PSA 31.78000
LogP 5.43600
Vapour Pressure 4.29E-08mmHg at 25°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :
SP2800000
CHEMICAL NAME :
Phenothiazine, 10-((1-methyl-3-piperidyl)methyl)-, monohydrochloride
CAS REGISTRY NUMBER :
2975-36-2
LAST UPDATED :
199510
DATA ITEMS CITED :
8
MOLECULAR FORMULA :
C19-H22-N2-S.Cl-H
MOLECULAR WEIGHT :
346.95
WISWESSER LINE NOTATION :
T C666 BN ISJ B1- CT6NTJ A1 &GH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,28,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
20 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,28,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
155 mg/kg
TOXIC EFFECTS :
Nutritional and Gross Metabolic - body temperature decrease
REFERENCE :
CKFRAY Ceskoslovenska Farmacie. (PNS-Ustredni Expedice a Dovoz Tisku, Kafkova 19, 160 00 Prague 6, Czechoslovakia) V.1- 1952- Volume(issue)/page/year: 6,365,1957
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,28,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
750 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,28,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
62 mg/kg
TOXIC EFFECTS :
Behavioral - sleep
REFERENCE :
APTOA6 Acta Pharmacologica et Toxicologica. (Copenhagen, Denmark) V.1-59, 1945-86. For publisher information, see PHTOEH Volume(issue)/page/year: 19,87,1962
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,28,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
20 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
27ZQAG "Psychotropic Drugs and Related Compounds," 2nd ed., Usdin, E., and D.H. Efron, Washington, DC, 1972 Volume(issue)/page/year: -,28,1972
Hazard Codes Xi
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