CHUAN YAO Senior Consultant , Singapore



Senior Consultant

  1. Professional Consultancy
  1. Wyeth / Pfizer,
  2. Go Medical Industries Pty Ltd, Australia,
  3. Pacific Pharmaceuticals Ltd (Merck Group)
  1. Auckland University of Technology


25+ years of experience in the Pharmaceutical/Medical Device industry
Senior positions in the areas of Quality Assurance, Regulatory Compliance and Regulatory Affairs –Merck, Wyeth, Pfizer (China, New Zealand, Australia and Singapore)

Areas of Expertise

US FDA, CFDA, PIC/s, EU GMP and ISO(17025, 14971, 13485, 14644) Compliance
QA and Risk Assessment in Pharmaceuticals and Devices
Compliance Auditing and Gap Analysis
Regulatory Affairs and Compliance
GxP Training
Analytical Testing
Process Capability

Chao wrote to me

Dear Anthony,

Thank you very much for adding me to your professional connection. I would like to introduce myself as I don’t have the pleasure to meet you personally.

My name is Chuan Yao, and I have had over 25 years’ experience in the pharmaceutical and medical device industry and have held senior positions in the areas of Quality Assurance, Regulatory Compliance and Regulatory Affairs. I have worked in the industry in China, New Zealand, Australia, Singapore and other ASEAN countries. I am currently working as a senior consultant for a consultancy company and am based in Singapore. My areas of expertise include –
 US FDA, CFDA, PIC/s, EU GMP, GxP and ISO Compliance
 QA and Risk Assessment in Pharmaceuticals and Devices
 Compliance Auditing and Gap Analysis
 Regulatory Affairs and Compliance
 GxP Training
 Analytical Testing
 Process Capability

I hope we can co-operate on a project and work together in the near future. Don’t hesitate to contact me for any questions or future request. Please keep in touch, My business email address is

Thank you !

Chuan Yao



Nice to know you through LinkedIn. Please see below my contact details.

ChemPharm is a professional full service consulting firm that has extensive practical expertise of supporting Pharmaceutical, Biotechnology, Medical Devices and Traditional Chinese Medicine (TCM) industries. ChemPharm is able to provide specialist expertise across all areas including: QA, QC, Production, Logistics, Product Development and Regulatory Affairs. Our Services include, review and remediation of existing GMP standards, development and implementation of Quality Management Systems, Validation Services, GMP/GDP/GLP Auditing including Pre-approval Inspection (PIA) and Supply Chain Auditing, DMF and product registration (especially in ASEAN countries and China).

ChemPharm consultants have extensive in-depth working knowledge and experience in International Regulations, Codes and Standards. This includes the major GMP regulations, codes and standards as follows:
◦PIC/S Part 1, Part 2 and Annexes
◦EU/UK EMEA, MHRA Eudralex Volume 4 (Orange Book)
◦US FDA 21CFR Parts 210 and 211,
◦US FDA 21 CFR Part 11 (Computers)
◦US FDA 21 CFR Part 820 (Devices)
◦WHO Guide to GMP 2007
◦ASEAN Code of GMP
◦ICH Q1, Q2, Q7, Q9, Q10
◦ISO 17025, 14971, 13485,
◦Industry Guidance Documents (PDA, GAMP, ISPE)

We stay current with regulatory changes in the USA, Europe and Asia to ensure that it meets a truly upfront global perspective. We are based in Singapore but service our client globally.

I hope we can co-operate a project and work together in near future. Please don’t hesitate to contact me for any question or future request.

Kind Regards,

Chuan Yao
Principal Consultant
ChemPharm (S) Pte Ltd
21 Jalan Sempadan #03-08
Singapore 457398
Tel: +65 6699 9007
Fax: +65 6699 9008
Mobile: +65 9673 1061


Skype: chuanyao1



DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 30 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, Dr T.V. Radhakrishnan and Dr B. K. Kulkarni, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 30 year tenure till date Dec 2017, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 50 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 19 lakh plus views on New Drug Approvals Blog in 216 countries...... , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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