イソブチレンだった
isobuchirendatta
1. Was isobutylene.
Noun
1. Was isobutylene.
1. isobutylene
1. If isobutylene; Were isobutylene
1. It wasn't isobutylene.
1. Isobutylene.
1. Is not isobutylene.; It is not isobutylene.
1. Probably isobutylene.
1. It was isobutylene.
1. It was not isobutylene.
1. Of isobutylene; Relating to isobutylene