ChemicalBook >> CAS DataBase List >>QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE)

QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE)

CAS No.: 103733-49-9

Chemical Name:: QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE)

Synonyms: PD 109488;Quinapril USP RC A;Quinapril Impurity Ⅰ;Quinapril EP Impurity D;Quinapril USP impurity A;Quinapril Diketopiperazine;Quinapril Related CoMpound A;Quinapril USP Related Compound A;Quinapril Hydrochloride Impurity D;Ethyl (2S)-2-[(3S,11aS)-3-Methyl-1,

CBNumber:: CB9500563

Molecular Formula:: C25H28N2O4

Molecular Weight:: 420.5

MDL Number:: MFCD18252326

MOL File:: 103733-49-9.mol

Last updated:2026-01-13 11:27:05

Product description	Number	Pack Size	Price
Quinapril Related Compound A	1593412	50mg	$1360
QuinaprilDiketopiperazine	Q670005	1mg	$130
QUINAPRIL DIKETOPIPERAZINE 95.00%	API0000775	10MG	$1732.5
QuinaprilDiketopiperazine	13312	5mg	$2000
QUINAPRIL DIKETOPIPERAZINE 95.00%	API0000775	1MG	$502.95
More product size

Request For Quotation

QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) Properties

Boiling point	644.5±55.0 °C(Predicted)
Density	1.25±0.1 g/cm3(Predicted)
storage temp.	-10 to -25°C
pka	-1.13±0.40(Predicted)
Major Application	pharmaceutical
InChIKey	NDDYKENLGBOEPD-HSQYWUDLSA-N
SMILES	N21[C@@H](Cc4c(cccc4)C2)C(=O)N([C@H](C1=O)C)[C@@H](CCc3ccccc3)C(=O)OCC
FDA UNII	482564RI35
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

WGK Germany	WGK 3
HS Code	2933997500
Storage Class	11 - Combustible Solids

QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) price More Price(9)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	1593412	Quinapril Related Compound A	103733-49-9	50mg	$1360	2025-07-31	Buy
TRC	Q670005	QuinaprilDiketopiperazine	103733-49-9	1mg	$130	2021-12-16	Buy
American Custom Chemicals Corporation	API0000775	QUINAPRIL DIKETOPIPERAZINE 95.00%	103733-49-9	10MG	$1732.5	2021-12-16	Buy
Medical Isotopes, Inc.	13312	QuinaprilDiketopiperazine	103733-49-9	5mg	$2000	2021-12-16	Buy
American Custom Chemicals Corporation	API0000775	QUINAPRIL DIKETOPIPERAZINE 95.00%	103733-49-9	1MG	$502.95	2021-12-16	Buy

Product number	Packaging	Price	Buy
1593412	50mg	$1360	Buy
Q670005	1mg	$130	Buy
API0000775	10MG	$1732.5	Buy
13312	5mg	$2000	Buy
API0000775	1MG	$502.95	Buy

QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) Chemical Properties,Uses,Production

Uses

Quinapril Diketopiperazine (Quinapril EP Impurity D) is a Quinapril derivative. ACE inhibitor.

QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) Preparation Products And Raw materials

Raw materials

Preparation Products

QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) Suppliers

Global( 58)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14332	58
TargetMol Chemicals Inc.	+1-781-999-5354; +17819995354	marketing@targetmol.com	United States	32470	58
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12373	58
J & K SCIENTIFIC LTD.	18210857532; 18210857532	jkinfo@jkchemical.com	China	96815	76
Chemsky (shanghai) International Co.,Ltd	021-50135380	shchemsky@sina.com	China	15402	60
Sinopharm Chemical Reagent Co,Ltd.	86-21-63210123	sj_scrc@sinopharm.com	China	9815	79
BOC Sciences	1-631-485-4226; 16314854226	info@bocsci.com	United States	12952	65
Quality Control Solutions Ltd.	66853366 13670046396	sales@chem-strong.com	China	18390	56
Nanjing XiZe Biotechnology CO., Ltd.	025-58362220 0086-15250997978	sale@njxizebio.com	China	4862	55
Tonichem Pharmaceutical Technology Co., Ltd.	+86 (0752) 222-7171, +86 15815821171		China	1120	58

Supplier	Advantage
Standardpharm Co. Ltd.	58
TargetMol Chemicals Inc.	58
sgtlifesciences pvt ltd	58
J & K SCIENTIFIC LTD.	76
Chemsky (shanghai) International Co.,Ltd	60
Sinopharm Chemical Reagent Co,Ltd.	79
BOC Sciences	65
Quality Control Solutions Ltd.	56
Nanjing XiZe Biotechnology CO., Ltd.	55
Tonichem Pharmaceutical Technology Co., Ltd.	58

103733-49-9(QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE))Related Search:

Quinapril Cyclohexyl Analog Dequalinium chloride Quinagolide hydrochloride QUINAPRILAT HYDRATE Quinapril

CarboxylicAcidPhenylMethylEsterHydrochloride,QuinaprilHcl Quinapril hydrochloride EP impurity G [3S-[2[R*(R*)],3R*]]-2-[2-[[1-(Ethoxycarbonyl)-3-phenylpropyl]aMino]-1-oxopropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic Acid Ethyl Ester (2Z)-2-Butenedioate Quinapril Methyl Ester Analog (3S)-3,4-Dihydro-2-[(2S)-2-[[(1S)-1-[(1-Methylethoxy)carbonyl]-3-phenylpropyl]aMino]-1-oxopropyl]-3(1H)-isoquinolinecarboxylic Acid

1of2

Quinapril Impurity 4（Quinapril EP Impurity D） Quinapril Hydrochloride Impurity Ⅰ：Quinapril Diketopiperazine QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) (aS,3S,11aS)-1,3,4,6,11,11a-Hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetic Acid PD 109488 Quinapril Diketopiperazine (aS,3S,11aS)-1,3,4,6,11,11a-Hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-2H-pyrazino[1,2-β]isoquinoline-2-acetic Acid 2H-Pyrazino(1,2-B)isoquinoline-2-acetic acid, 1,3,4,6,11,11A-hexahydro-3-methyl-1,4-dioxo-alpha-(2-phenylethyl)-, ethyl ester, (3S-(2(R*),3alpha-11abeta))- QUINAPRIL RELATED COMPOUND A (50 MG) (ETHYL[3S-[2(R*),3A,11A BETA]]-1,3,4,6,11,11A-HEXAHYDRO-3-METHYL-1,4-DIOXO-ALPHA-(2-PHENY-LETHYL)-2H-PYRAZINO[1,2-B]ISOQUINOLINE-2-ACETATE) Quinapril Related CoMpound A (alphaS,3S,11aS)-1,3,4,6,11,11a-Hexahydro-3-methyl-1,4-dioxo-alpha-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetic acid ethyl ester (αS,3S,11aS)-1,3,4,6,11,11a-Hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetic acid ethyl ester Quinapril USP RC A Quinapril EP Impurity D Ethyl [3S-[2(R*),3a,11a beta]]-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-alpha-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetate Quinapril Impurity Ⅰ Quinapril USP impurity A Ethyl (2S)-2-[(3S,11aS)-3-Methyl-1, 2H-Pyrazino[1,2-b]isoquinoline-2-acetic acid, 1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-, ethyl ester, (αS,3S,11aS)- Quinapril EP Impurity D/ Quinapril Related Compound A (Quinapril Diketopiperazine) Quinapril Related Compound A(Secondary Standards traceble to USP) (αS,3S,11aS)-1,3,4,6,11,11a-Hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetic Acid Quinapril Related Compound A (Ethyl[3S-[2(R*),3a,11a beta]]-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-d (1593412) Quinapril Impurity Ⅰ Ethyl[3S-[2(R*),3a,11a β]]-1,3,4,6,11,11a-hexahydro- 3-methyl-1,4-dioxo-α -(2-phenylethyl)-2H-pyrazino[1 ,2-b]isoquinoline-2-acetate Quinapril Hydrochloride Impurity D Quinapril Hydrochloride EP Impurity D Quinapril USP Related Compound A ethyl (2S)-2-[(3S,11aS)-3-methyl-1,4-dioxo-1,3,4,6,11,11a-hexahydro-2H-pyrazino[1,2-b]isoquinolin-2-yl]-4-phenylbutanoate Quinapril Related Compound A (50 mg) (Ethyl [3S-[(2R*), 3a, 11ab]]-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-2H-pyrazino[1,2-b]isoquinoline-2-acetate) Quinapril EP Impurity D (Quinapril USP Related Compound A) Ethyl (2S)-2-[(3S,11aS)-3-Methyl-1,4-dioxo-1,3,4,6,11,11a-hexahydro-2H-pyrazino[1,2-b]isoquinolin-2- Quinapril hydrochloride Related Compound A: ethyl (2S)-2-[(3S,11aS)-3-methyl-1,4-dioxo-1,3,4,6,11,11a-hexahydro-2H-pyrazino[1,2-b]isoquinolin-2-yl]-4-phenylbutanoate (Quinapril hydrochloride Imp. D (EP)) (S)-ethyl 2-((3S,11aS)-3-methyl-1,4-dioxo-3,4,11,11a-tetrahydro-1H-pyrazino[1,2-b]isoquinolin-2(6H)-yl)-4-phenylbutanoate 103733-49-9 4205 Heterocyclic Compounds Heterocycles Intermediates & Fine Chemicals Pharmaceuticals