亚洲大乳无码一级毛片色_欧美激性欧美激情在线五月_精品成人国产片在线观看_在线观看免费版的AV_91看片精品啪在线观看国产

English alias:  DCDA;  DCD； N-Cyanoguanidine;  Cyanoguanidine;

EINECS NO: 207-312-8

Molecular formula: C₂H₄N₄

Molecular weight: 84.0874

Structural formula:

Content: Above 99.5%

Melting point: 208-211℃

Package: Net weight 25kg, 500kg, 1000kg plastic woven bags