请问这句的句子成分是?越详细越好,

Because
of its irritating effect on humans,the use of phenol as a general antiseptic
has been largely discontinued.
由于苯酚对人体带有刺激性作用,它基本上已不再被当作常用的防腐剂了.



Because of its irritating effect on humans,原因状语
其中irritating作定语,修饰effect,


the use of phenol as a general antiseptic has been largely discontinued.
主语：The use of phenol as a general antiseptic (其中of phenol as a general antiseptic做定语,修饰主语）
谓语：has been
表语：largely discontinued （其中largely副词做状语,修饰discontinued)

原因定于从句。。

because of后面不能直接接句子，要接短语或者从句。it是指苯酚phenol .后面是the use of phenol has been largely didcontinued .所以这个句子的翻译就很容易了。

Because of its irritating effect on humans, 状语
the use of phenol as a general antiseptic 主语has been largely discontinued. 谓语动词是 be 动词 + 表语