Verapamil hydrochloride在CA查到了以下CAS 号码信息：

23313-68-0
CA INDEX NAME:
Benzeneacetonitrile, α-methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl)-, monohydrochloride, (±)
FORMULA:
C27H38N2O4.ClH

152-11-4
CA INDEX NAME:
Benzeneacetonitrile, α-methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl)-, monohydrochloride
FORMULA:
C27H38N2O4.ClH

36622-28-3
CA INDEX NAME:
Benzeneacetonitrile, α-methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl)-, monohydrochloride, (S)-
FORMULA:
C27H38N2O4.ClH

38176-02-2
CA INDEX NAME:
Benzeneacetonitrile, α-methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl)-, monohydrochloride, (R)-
FORMULA:
C27H38N2O4.ClH

问题是，152-11-4究竟是什么物质？是Verapamil hydrochloride的什么构型物质？请大家帮忙，