维生素B12（氰钴胺）

评测依据

• review_count：180
• rating_avg：4.6
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:36:59","to":"2026-06-26 04:36:59"}
• intros：{"brand_intro":"麦克林（Macklin）是上海麦克林生化科技有限公司旗下品牌，专注于高纯生化试剂与标准品的研发与销售。产品覆盖维生素、氨基酸、抗生素等品类，以严格的质检体系和快速配送服务在科研市场建立口碑，尤其受中小型实验室欢迎。","product_intro":"维生素B12（氰钴胺）为深红色结晶粉末，纯度≥99%，适用于微生物培养、酶促反应及贫血模型研究。产品经UV-Vis和HPLC双重验证，水溶性好，溶液呈典型红色，可作比色标准品使用。","key_specs":{"纯度":"≥99% (HPLC)","分子式":"C63H88CoN14O14P","分子量":"1355.37 g/mol","储存条件":"2-8°C，避光","溶解性":"水溶性 (50 mg/mL)","吸光度":"E1% 1cm (361 nm) ≥ 200"}}
• alt_products：[{"product_name":"维生素B12（氰钴胺）","brand":"麦克林 (Macklin)","model":"V820352-1g","price":135},{"product_name":"维生素D3（胆钙化醇）","brand":"阿拉丁 (Aladdin)","model":"V103399-1g","price":168},{"product_name":"维生素E（α-生育酚）","brand":"源叶生物 (Yuanye Bio)","model":"S30660-25g","price":198}]
• kol_quotes：["麦克林的B12颜色非常正，做标准曲线线性很好。","用于乳酸菌培养，促进效果明显，推荐给食品微生物方向的研究者。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":84.1,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户称赞其颜色鲜艳、纯度高，用于微生物生长实验效果显著。多数评论认为价格合理，适合大批量采购。部分用户提到粉末易吸潮，建议在干燥环境中操作。少数反馈包装标签信息可更详细，如增加批次报告二维码。","source_count":0}},{"source":"objective","score":86.35861809045225,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.6,"price":135,"wom_score":84.1}},{"source":"user_review","score":92,"weight":0.15,"confidence":1,"details":{"rating_avg":4.6,"review_count":180,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["麦克林的B12颜色非常正，做标准曲线线性很好。","用于乳酸菌培养，促进效果明显，推荐给食品微生物方向的研究者。"]}}]
• method_version：v3
• search_visual：null